diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c3b1778
--- /dev/null
+++ b/README.md
@@ -0,0 +1,81 @@
+Maillog
+-------
+The Maillog module provides a method of keeping archival copies of all emails
+sent through the site. It can also, optionally, display a copy of the email
+using the Devel module, if present.
+
+Features
+--------------------------------------------------------------------------------
+* All emails being sent by the site may have a copy stored in the database for
+  later review.
+
+* All email delivery may be halted, preventing a site from sending out emails
+  in situations where that might not be needed, e.g. for a local development
+  copy of the site.
+
+* If the Devel module https://www.backdropcms.org/project/devel is installed, emails
+  can also be displayed on the page as they are being sent.
+
+* If the MailSystem module https://www.backdropcms.org/project/mailsystem is
+  installed it is possible to control which of the installed email modules will
+  be used to send messages from Maillog's settings page, mirroring MailSystem's
+  functionality.
+
+Configuration
+--------------------------------------------------------------------------------
+ 1. On the User Accounts Permissions administration page ("Administer >> Configure
+    >> People >> Permissions") there are three permissions to control:
+
+    - The "Administer Maillog" permission allows users to access the settings
+      page to control the module's options.
+
+    - The "View Maillog" permission allows users to access the Maillog list page
+      at admin/reports/maillog.
+
+    - The "Delete Entries from the log" permission allows users to delete items
+      from the log page.
+
+ 2. The main administrative page controls the module's settings page:
+      admin/config/development/maillog
+
+
+Troubleshooting / known issues
+--------------------------------------------------------------------------------
+If the email is not being logged then the site's default email system is not
+configured correctly. It is recommended to use the MailSystem module
+https://www.backdropcms.org/project/mailsystem to help with this. Alternatively, edit
+the system.mail.json file in your active config folder:
+
+```
+  "default-system": "MaillogMailSystem",
+```
+
+Related modules
+--------------------------------------------------------------------------------
+Some similar modules that are available include:
+
+* Reroute Email
+  Reroutes outbound emails to a specific destination address.
+  http://backdropcms.org/project/reroute_email
+
+License
+-------
+
+This project is GPL v2 software. See the LICENSE.txt file in this directory for
+complete text.
+
+
+Current Maintainers
+-------------------
+
+- Seeking maintainers.
+
+Credits
+-------
+
+- Ported to Backdrop CMS by herbdool (https://github.com/herbdool).
+
+This module is a port of the SMTP module for Drupal which was written and maintained by a large number of contributors, including:
+
+Maintained by Miro Dietiker https://www.drupal.org/u/miro_dietiker, Sascha Grossenbacher https://www.drupal.org/u/berdir and Damien McKenna
+https://www.drupal.org/u/damiemckenna.
diff --git a/README.txt b/README.txt
deleted file mode 100644
index 174b4af..0000000
--- a/README.txt
+++ /dev/null
@@ -1,90 +0,0 @@
-Maillog
--------
-The Maillog module provides a method of keeping archival copies of all emails
-sent through the site. It can also, optionally, display a copy of the email
-using the Devel module [1], if present.
-
-
-Features
---------------------------------------------------------------------------------
-* All emails being sent by the site may have a copy stored in the database for
-  later review.
-
-* All email delivery may be halted, preventing a site from sending out emails
-  in situations where that might not be needed, e.g. for a local development
-  copy of the site.
-
-* If the Devel module is installed [1], emails can also be displayed on the page
-  as they are being sent.
-
-* If the MailSystem module [2] is installed it is possible to control which of
-  the installed email modules will be used to send messages from Maillog's
-  settings page, mirroring MailSystem's functionality.
-
-
-Configuration
---------------------------------------------------------------------------------
- 1. On the People Permissions administration page ("Administer >> People
-    >> Permissions") there are three permissions to control:
-
-    - The "Administer Maillog" permission allows users to access the settings
-      page to control the module's options.
-
-    - The "View Maillog" permission allows users to access the Maillog list page
-      at admin/reports/maillog.
-
-    - The "Delete Entries from the log" permission allows users to delete items
-      from the log page.
-
- 2. The main administrative page controls the module's settings page:
-      admin/config/development/maillog
-
-
-Troubleshooting / known issues
---------------------------------------------------------------------------------
-If the email is not being logged then the site's default email system is not
-configured correctly. It is recommended to use the MailSystem module [2] to help
-with this. Alternatively, add the following to the enf of the site's
-settings.php file:
-
-// Control which module is responsible for sending the site's emails.
-$conf['mail_system'] = array(
-  'default-system' => 'MaillogMailSystem',
-);
-
-
-Related modules
---------------------------------------------------------------------------------
-Some similar modules that are available include:
-
-* Reroute Email
-  Reroutes outbound emails to a specific destination address.
-  http://drupal.org/project/reroute_email
-
-* Advanced Mail Reroute
-  Reroutes outbound emails with complete control over the destination based upon
-  the email's key.
-  http://drupal.org/project/advanced_mail_reroute
-
-* Mail Logger
-  Logs all emails sent through the site.
-  http://drupal.org/project/mail_logger
-
-
-Credits / contact
---------------------------------------------------------------------------------
-Maintained by Miro Dietiker [3], Sascha Grossenbacher [4] and Damien McKenna
-[5].
-
-The best way to contact the authors is to submit an issue, be it a support
-request, a feature request or a bug report, in the project issue queue:
-  https://www.drupal.org/project/issues/maillog
-
-
-References
---------------------------------------------------------------------------------
-1: https://www.drupal.org/project/devel
-2: https://www.drupal.org/project/mailsystem
-3: https://www.drupal.org/u/miro_dietiker
-4: https://www.drupal.org/u/berdir
-5: https://www.drupal.org/u/damiemckenna
diff --git a/config/maillog.settings.json b/config/maillog.settings.json
new file mode 100644
index 0000000..ac66f77
--- /dev/null
+++ b/config/maillog.settings.json
@@ -0,0 +1,7 @@
+{
+    "_config_name": "maillog.settings",
+    "maillog_send": 1,
+    "maillog_log": 1,
+    "maillog_devel": 1,
+    "maillog_engine": "DefaultMailSystem"
+}
diff --git a/config/views.view.maillog.json b/config/views.view.maillog.json
new file mode 100644
index 0000000..cfe9b06
--- /dev/null
+++ b/config/views.view.maillog.json
@@ -0,0 +1,143 @@
+{
+    "_config_name": "views.view.maillog",
+    "name": "maillog",
+    "description": "Displays the list of e-mails logged by the 'Mail Log' module.",
+    "module": "maillog",
+    "storage": 4,
+    "tag": "",
+    "disabled": false,
+    "base_table": "maillog",
+    "human_name": "Mail Log Report",
+    "core": "1.0",
+    "display": {
+        "default": {
+            "display_title": "Defaults",
+            "display_plugin": "default",
+            "display_options": {
+                "query": {
+                    "type": "views_query",
+                    "options": []
+                },
+                "title": "Maillog",
+                "use_more_always": false,
+                "access": {
+                    "type": "perm",
+                    "perm": "view maillog"
+                },
+                "cache": {
+                    "type": "none"
+                },
+                "exposed_form": {
+                    "type": "basic"
+                },
+                "pager": {
+                    "type": "none"
+                },
+                "style_plugin": "table",
+                "empty": {
+                    "area_text_custom": {
+                        "id": "area_text_custom",
+                        "table": "views",
+                        "field": "area_text_custom",
+                        "label": "Maillog",
+                        "empty": true,
+                        "content": "Maillog is currently empty. Send a mail!"
+                    }
+                },
+                "fields": {
+                    "idmaillog": {
+                        "id": "idmaillog",
+                        "table": "maillog",
+                        "field": "idmaillog",
+                        "exclude": true
+                    },
+                    "sent_date": {
+                        "id": "sent_date",
+                        "table": "maillog",
+                        "field": "sent_date"
+                    },
+                    "header_message_id": {
+                        "id": "header_message_id",
+                        "table": "maillog",
+                        "field": "header_message_id"
+                    },
+                    "subject": {
+                        "id": "subject",
+                        "table": "maillog",
+                        "field": "subject",
+                        "alter": {
+                            "make_link": true,
+                            "path": "maillog/details/[idmaillog]"
+                        }
+                    },
+                    "header_from": {
+                        "id": "header_from",
+                        "table": "maillog",
+                        "field": "header_from"
+                    },
+                    "header_to": {
+                        "id": "header_to",
+                        "table": "maillog",
+                        "field": "header_to"
+                    },
+                    "nothing": {
+                        "id": "nothing",
+                        "table": "views",
+                        "field": "nothing",
+                        "label": "",
+                        "exclude": true,
+                        "alter": {
+                            "text": "view",
+                            "make_link": true,
+                            "path": "maillog/details/[idmaillog]"
+                        },
+                        "element_label_colon": false
+                    },
+                    "delete_maillog": {
+                        "id": "delete_maillog",
+                        "table": "maillog",
+                        "field": "delete_maillog",
+                        "label": "",
+                        "exclude": true,
+                        "element_label_colon": false
+                    },
+                    "nothing_1": {
+                        "id": "nothing_1",
+                        "table": "views",
+                        "field": "nothing",
+                        "label": "Actions",
+                        "alter": {
+                            "text": "[nothing] | [delete_maillog]"
+                        }
+                    }
+                },
+                "sorts": {
+                    "sent_date": {
+                        "id": "sent_date",
+                        "table": "maillog",
+                        "field": "sent_date",
+                        "order": "DESC"
+                    }
+                }
+            }
+        },
+        "page_1": {
+            "display_title": "Page",
+            "display_plugin": "page",
+            "display_options": {
+                "query": {
+                    "type": "views_query",
+                    "options": []
+                },
+                "path": "admin/reports/maillog",
+                "menu": {
+                    "type": "normal",
+                    "title": "Maillog",
+                    "description": "Show the logged mails",
+                    "weight": "0",
+                    "name": "management"
+                }
+            }
+        }
+    }
+}
diff --git a/includes/maillog.mail.inc b/includes/maillog.mail.inc
index 7250aaf..8f4d172 100644
--- a/includes/maillog.mail.inc
+++ b/includes/maillog.mail.inc
@@ -5,7 +5,7 @@
  */
 class MaillogMailSystem implements MailSystemInterface {
   /**
-   * Format a message composed by drupal_mail() prior sending.
+   * Format a message composed by backdrop_mail() prior sending.
    *
    * @param $message
    *   A message array, as described in hook_mail_alter().
@@ -14,13 +14,13 @@ class MaillogMailSystem implements MailSystemInterface {
    *   The formatted $message.
    */
   public function format(array $message) {
-    $mailclass = variable_get('maillog_engine', 'DefaultMailSystem');
+    $mailclass = config_get('maillog.settings',  'maillog_engine');
     $default = new $mailclass();
     return $default->format($message);
   }
 
   /**
-   * Send a message composed by drupal_mail().
+   * Send a message composed by backdrop_mail().
    *
    * @param $message
    *   Message array with at least the following elements:
@@ -35,7 +35,7 @@ class MaillogMailSystem implements MailSystemInterface {
    *    - subject: Subject of the e-mail to be sent. This must not contain any
    *      newline characters, or the mail may not be sent properly.
    *    - body: Message to be sent. Accepts both CRLF and LF line-endings.
-   *      E-mail bodies must be wrapped. You can use drupal_wrap_mail() for
+   *      E-mail bodies must be wrapped. You can use backdrop_wrap_mail() for
    *      smart plain text wrapping.
    *    - headers: Associative array containing all additional mail headers not
    *      defined by one of the other parameters.  PHP's mail() looks for Cc
@@ -46,14 +46,14 @@ class MaillogMailSystem implements MailSystemInterface {
    */
   public function mail(array $message) {
     // Log the e-mail
-    if (variable_get('maillog_log', TRUE)) {
+    if (config_get('maillog.settings', 'maillog_log')) {
       $record = new stdClass;
 
       // In case the subject/from/to is already encoded, decode with mime_header_decode
       $record->header_message_id = isset($message['headers']['Message-ID']) ? $message['headers']['Message-ID'] : NULL;
       $record->subject = $message['subject'];
       $record->subject = mime_header_decode($record->subject);
-      $record->subject = drupal_substr($record->subject, 0, 255);
+      $record->subject = backdrop_substr($record->subject, 0, 255);
       $record->body = $message['body'];
       $record->header_from = isset($message['from']) ? $message['from'] : NULL;
       $record->header_from = mime_header_decode($record->header_from);
@@ -75,11 +75,11 @@ class MaillogMailSystem implements MailSystemInterface {
       $record->header_all = serialize($message['headers']);
       $record->sent_date = REQUEST_TIME;
 
-      drupal_write_record('maillog', $record);
+      backdrop_write_record('maillog', $record);
     }
 
     // Display the e-mail using Devel module
-    if (variable_get('maillog_devel', TRUE) && function_exists('dpm')) {
+    if (config_get('maillog.settings', 'maillog_devel') && function_exists('dpm')) {
       $devel_msg = array();
       $devel_msg[t('Subject')] = $message['subject'];
       $devel_msg[t('From')] = $message['from'];
@@ -91,15 +91,15 @@ class MaillogMailSystem implements MailSystemInterface {
       dpm($devel_msg, 'maillog');
     }
 
-    if (variable_get('maillog_send', TRUE)) {
-      $mailclass = variable_get('maillog_engine', 'DefaultMailSystem');
+    if (config_get('maillog.settings', 'maillog_send')) {
+      $mailclass = config_get('maillog.settings', 'maillog_engine');
       $default = new $mailclass();
       $result = $default->mail($message);
     }
     elseif (user_access('administer maillog')) {
       $message = t('Sending of e-mail messages is disabled by Maillog module. Go <a href="@href">here</a> to enable.', array('@href' => url('admin/reports/maillog')));
 
-      drupal_set_message($message, 'warning', TRUE);
+      backdrop_set_message($message, 'warning', TRUE);
     }
     else {
       global $user;
diff --git a/includes/maillog.views.inc b/includes/maillog.views.inc
index cf5619b..682f293 100644
--- a/includes/maillog.views.inc
+++ b/includes/maillog.views.inc
@@ -197,7 +197,7 @@ function maillog_views_data() {
 function maillog_views_handlers() {
   return array(
     'info' => array(
-      'path' => drupal_get_path('module', 'maillog') . '/includes',
+      'path' => backdrop_get_path('module', 'maillog') . '/includes',
     ),
     'handlers' => array(
       // field handlers
@@ -207,4 +207,3 @@ function maillog_views_handlers() {
     ),
   );
 }
-
diff --git a/includes/maillog.views_default.inc b/includes/maillog.views_default.inc
deleted file mode 100644
index 5b6700c..0000000
--- a/includes/maillog.views_default.inc
+++ /dev/null
@@ -1,128 +0,0 @@
-<?php
-
-/**
- * @file
- * Creates the default view for the 'Log Mail' module
- */
-
-/**
- * Implementation of hook_views_default_views().
- */
-function maillog_views_default_views() {
-  $view = new view();
-  $view->name = 'Maillog';
-  $view->description = 'Displays the list of e-mails logged by the \'Mail Log\' module.';
-  $view->tag = '';
-  $view->base_table = 'maillog';
-  $view->human_name = '';
-  $view->core = 0;
-  $view->api_version = '3.0';
-  $view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */
-
-  /* Display: Defaults */
-  $handler = $view->new_display('default', 'Defaults', 'default');
-  $handler->display->display_options['title'] = 'Maillog';
-  $handler->display->display_options['use_more_always'] = FALSE;
-  $handler->display->display_options['access']['type'] = 'perm';
-  $handler->display->display_options['access']['perm'] = 'view maillog';
-  $handler->display->display_options['cache']['type'] = 'none';
-  $handler->display->display_options['query']['type'] = 'views_query';
-  $handler->display->display_options['exposed_form']['type'] = 'basic';
-  $handler->display->display_options['pager']['type'] = 'none';
-  $handler->display->display_options['style_plugin'] = 'table';
-  /* No results behavior: Global: Unfiltered text */
-  $handler->display->display_options['empty']['area_text_custom']['id'] = 'area_text_custom';
-  $handler->display->display_options['empty']['area_text_custom']['table'] = 'views';
-  $handler->display->display_options['empty']['area_text_custom']['field'] = 'area_text_custom';
-  $handler->display->display_options['empty']['area_text_custom']['label'] = 'Maillog';
-  $handler->display->display_options['empty']['area_text_custom']['empty'] = TRUE;
-  $handler->display->display_options['empty']['area_text_custom']['content'] = 'Maillog is currently empty. Send a mail!';
-  /* Field: Maillog: Maillog_ID */
-  $handler->display->display_options['fields']['idmaillog']['id'] = 'idmaillog';
-  $handler->display->display_options['fields']['idmaillog']['table'] = 'maillog';
-  $handler->display->display_options['fields']['idmaillog']['field'] = 'idmaillog';
-  $handler->display->display_options['fields']['idmaillog']['exclude'] = TRUE;
-  /* Field: Maillog: Date */
-  $handler->display->display_options['fields']['sent_date']['id'] = 'sent_date';
-  $handler->display->display_options['fields']['sent_date']['table'] = 'maillog';
-  $handler->display->display_options['fields']['sent_date']['field'] = 'sent_date';
-  /* Field: Maillog: Message_ID */
-  $handler->display->display_options['fields']['header_message_id']['id'] = 'header_message_id';
-  $handler->display->display_options['fields']['header_message_id']['table'] = 'maillog';
-  $handler->display->display_options['fields']['header_message_id']['field'] = 'header_message_id';
-  /* Field: Maillog: Subject */
-  $handler->display->display_options['fields']['subject']['id'] = 'subject';
-  $handler->display->display_options['fields']['subject']['table'] = 'maillog';
-  $handler->display->display_options['fields']['subject']['field'] = 'subject';
-  $handler->display->display_options['fields']['subject']['alter']['make_link'] = TRUE;
-  $handler->display->display_options['fields']['subject']['alter']['path'] = 'maillog/details/[idmaillog]';
-  /* Field: Maillog: From */
-  $handler->display->display_options['fields']['header_from']['id'] = 'header_from';
-  $handler->display->display_options['fields']['header_from']['table'] = 'maillog';
-  $handler->display->display_options['fields']['header_from']['field'] = 'header_from';
-  /* Field: Maillog: To */
-  $handler->display->display_options['fields']['header_to']['id'] = 'header_to';
-  $handler->display->display_options['fields']['header_to']['table'] = 'maillog';
-  $handler->display->display_options['fields']['header_to']['field'] = 'header_to';
-  /* Field: Global: Custom text */
-  $handler->display->display_options['fields']['nothing']['id'] = 'nothing';
-  $handler->display->display_options['fields']['nothing']['table'] = 'views';
-  $handler->display->display_options['fields']['nothing']['field'] = 'nothing';
-  $handler->display->display_options['fields']['nothing']['label'] = '';
-  $handler->display->display_options['fields']['nothing']['exclude'] = TRUE;
-  $handler->display->display_options['fields']['nothing']['alter']['text'] = 'view';
-  $handler->display->display_options['fields']['nothing']['alter']['make_link'] = TRUE;
-  $handler->display->display_options['fields']['nothing']['alter']['path'] = 'maillog/details/[idmaillog]';
-  $handler->display->display_options['fields']['nothing']['element_label_colon'] = FALSE;
-  /* Field: Maillog: Delete link */
-  $handler->display->display_options['fields']['delete_maillog']['id'] = 'delete_maillog';
-  $handler->display->display_options['fields']['delete_maillog']['table'] = 'maillog';
-  $handler->display->display_options['fields']['delete_maillog']['field'] = 'delete_maillog';
-  $handler->display->display_options['fields']['delete_maillog']['label'] = '';
-  $handler->display->display_options['fields']['delete_maillog']['exclude'] = TRUE;
-  $handler->display->display_options['fields']['delete_maillog']['element_label_colon'] = FALSE;
-  /* Field: Global: Custom text */
-  $handler->display->display_options['fields']['nothing_1']['id'] = 'nothing_1';
-  $handler->display->display_options['fields']['nothing_1']['table'] = 'views';
-  $handler->display->display_options['fields']['nothing_1']['field'] = 'nothing';
-  $handler->display->display_options['fields']['nothing_1']['label'] = 'Actions';
-  $handler->display->display_options['fields']['nothing_1']['alter']['text'] = '[nothing] | [delete_maillog]';
-  /* Sort criterion: Maillog: Date */
-  $handler->display->display_options['sorts']['sent_date']['id'] = 'sent_date';
-  $handler->display->display_options['sorts']['sent_date']['table'] = 'maillog';
-  $handler->display->display_options['sorts']['sent_date']['field'] = 'sent_date';
-  $handler->display->display_options['sorts']['sent_date']['order'] = 'DESC';
-
-  /* Display: Page */
-  $handler = $view->new_display('page', 'Page', 'page_1');
-  $handler->display->display_options['path'] = 'admin/reports/maillog';
-  $handler->display->display_options['menu']['type'] = 'normal';
-  $handler->display->display_options['menu']['title'] = 'Maillog';
-  $handler->display->display_options['menu']['description'] = 'Show the logged mails';
-  $handler->display->display_options['menu']['weight'] = '0';
-  $handler->display->display_options['menu']['name'] = 'management';
-  $translatables['Maillog'] = array(
-    t('Defaults'),
-    t('Maillog'),
-    t('more'),
-    t('Apply'),
-    t('Reset'),
-    t('Sort by'),
-    t('Asc'),
-    t('Desc'),
-    t('Maillog is currently empty. Send a mail!'),
-    t('Maillog_ID'),
-    t('Date'),
-    t('Message_ID'),
-    t('Subject'),
-    t('From'),
-    t('To'),
-    t('view'),
-    t('Actions'),
-    t('[nothing] | [delete_maillog]'),
-    t('Page'),
-  );
-
-  $views[$view->name] = $view;
-  return $views;
-}
diff --git a/includes/maillog_handler_field_maillog_entry_link_delete.inc b/includes/maillog_handler_field_maillog_entry_link_delete.inc
index 83fddbf..008eec0 100644
--- a/includes/maillog_handler_field_maillog_entry_link_delete.inc
+++ b/includes/maillog_handler_field_maillog_entry_link_delete.inc
@@ -1,4 +1,4 @@
-<?php 
+<?php
 
 /**
  * @file
@@ -25,7 +25,6 @@ class maillog_handler_field_maillog_entry_link_delete extends views_handler_fiel
       return;
     }
     $text = !empty($this->options['text']) ? $this->options['text'] : t('delete');
-    return l($text, "maillog/delete/$values->maillog_id", array('query' => drupal_get_destination()));
+    return l($text, "maillog/delete/$values->maillog_id", array('query' => backdrop_get_destination()));
   }
 }
-
diff --git a/includes/maillog_handler_field_maillog_link_delete.inc b/includes/maillog_handler_field_maillog_link_delete.inc
index 90c4d38..df4faa9 100644
--- a/includes/maillog_handler_field_maillog_link_delete.inc
+++ b/includes/maillog_handler_field_maillog_link_delete.inc
@@ -25,7 +25,6 @@ class maillog_handler_field_maillog_link_delete extends views_handler_field {
       return;
     }
     $text = !empty($this->options['text']) ? $this->options['text'] : t('delete');
-    return l($text, "maillog/delete/$values->idmaillog", array('query' => drupal_get_destination()));
+    return l($text, "maillog/delete/$values->idmaillog", array('query' => backdrop_get_destination()));
   }
 }
-
diff --git a/maillog.info b/maillog.info
index a201749..eeac24f 100644
--- a/maillog.info
+++ b/maillog.info
@@ -1,15 +1,9 @@
 name = Maillog / Mail Developer
 description = Utility to log all Mails for debugging purposes. It's possible to suppress mail delivery for e.g. dev or staging systems.
 package = Mail
-core = 7.x
+backdrop = 1.x
+type = module
 
 dependencies[] = views
 
 configure = admin/config/development/maillog
-
-files[] = includes/maillog.mail.inc
-files[] = includes/maillog_handler_field_maillog_entry_link_delete.inc
-files[] = includes/maillog_handler_field_maillog_link_delete.inc
-
-; Tests.
-files[] = tests/maillog.unit.test
diff --git a/maillog.install b/maillog.install
index 14c4c3e..69cb0dd 100644
--- a/maillog.install
+++ b/maillog.install
@@ -13,7 +13,7 @@ function maillog_enable() {
   $default_class = 'DefaultMailSystem';
 
   // Load the current mail configuration.
-  $mail_system = variable_get('mail_system', array('default-system' => $default_class));
+  $mail_system['default-system'] = config_get('system.mail', 'default-system');
   $mail_system['maillog'] = 'MaillogMailSystem';
 
   // If maillog is enabled, don't take over the default
@@ -21,11 +21,11 @@ function maillog_enable() {
     $mail_system['default-system'] = $mail_system['maillog'];
   }
   else {
-    drupal_set_message(t('The Maillog module was not set as the default email system because another module is already handling email.'));
+    backdrop_set_message(t('The Maillog module was not set as the default email system because another module is already handling email.'));
   }
 
   // Update the settings.
-  variable_set('mail_system', $mail_system);
+  config_set('system.mail', 'default-system', $mail_system['default-system']);
 
   // The maillog reports page is provided by a view, but it needs a menu cache
   // clear after the default views are loaded in order for the menu item to
@@ -33,8 +33,8 @@ function maillog_enable() {
   global $language;
   cache_clear_all('ctools_plugin_files:ctools:export_ui', 'cache');
   cache_clear_all('ctools_plugin_type_info', 'cache');
-  cache_clear_all('views:plugin_data:' . $language->language, 'cache');
-  variable_set('menu_rebuild_needed', TRUE);
+  cache_clear_all('views:plugin_data:' . $language->langcode, 'cache');
+  state_set('menu_rebuild_needed', TRUE);
 }
 
 /**
@@ -42,7 +42,8 @@ function maillog_enable() {
  */
 function maillog_disable() {
   // Get the current mail system config.
-  $mail_system = variable_get('mail_system', array('default-system' => 'DefaultMailSystem'));
+  $config = config('system.mail');
+  $mail_system = $config->get();
 
   // Delete any overrides that might be set for Maillog.
   unset($mail_system['maillog']);
@@ -69,7 +70,8 @@ function maillog_disable() {
   }
 
   // Update the mail config.
-  variable_set('mail_system', $mail_system);
+  $config->setData($mail_system);
+  $config->save();
 }
 
 /**
@@ -139,11 +141,22 @@ function maillog_schema() {
 }
 
 /**
- * Implements hook_uninstall().
+ * Update webforms from Drupal to Backdrop.
  */
-function maillog_uninstall() {
-  variable_del('maillog_devel');
-  variable_del('maillog_log');
-  variable_del('maillog_send');
-  variable_del('maillog_engine');
+function maillog_update_1000() {
+  $config = config('maillog.settings');
+
+  // migrate variables
+  $config->set('maillog_send', update_variable_get('maillog_send', TRUE));
+  $config->set('maillog_log', update_variable_get('maillog_log', TRUE));
+  $config->set('maillog_devel', update_variable_get('maillog_devel', TRUE));
+  $config->set('maillog_engine', update_variable_get('maillog_engine', 'DefaultMailSystem'));
+
+  $config->save();
+
+  // Delete variables.
+  update_variable_del('maillog_');
+  update_variable_del('maillog_');
+  update_variable_del('maillog_');
+  update_variable_del('maillog_');
 }
diff --git a/maillog.module b/maillog.module
index 8bb135b..d269a58 100644
--- a/maillog.module
+++ b/maillog.module
@@ -12,10 +12,32 @@
  * Please install mimemail to make the outgoing engine pluggable.
  *
  * mail flow:
- * drupal_mail -> maillog:drupal_mail_wrapper -> maillog_mail_send
+ * backdrop_mail -> maillog:backdrop_mail_wrapper -> maillog_mail_send
  * mimemail -> maillog_mailengine -> maillog_mail_send [-> ANY_engine]
  */
 
+/**
+ * Implements hook_config_info().
+ */
+function maillog_config_info() {
+  $prefixes['maillog.settings'] = array(
+    'label' => t('Maillog settings'),
+    'group' => t('Configuration'),
+  );
+  return $prefixes;
+}
+
+/**
+ * Implements hook_autoload_info().
+ */
+function maillog_autoload_info() {
+  return array(
+    'MaillogMailSystem' => 'includes/maillog.mail.inc',
+    'maillog_handler_field_maillog_entry_link_delete' => 'includes/maillog_handler_field_maillog_entry_link_delete.inc',
+    'maillog_handler_field_maillog_link_delete' => 'includes/maillog_handler_field_maillog_link_delete.inc',
+  );
+}
+
 /**
  * Implementation of hook_permision().
  */
@@ -45,7 +67,7 @@ function maillog_menu() {
   $items['admin/config/development/maillog'] = array(
     'title' => t('Maillog Settings'),
     'description' => t('Configure the settings of Maillog module.'),
-    'page callback' => 'drupal_get_form',
+    'page callback' => 'backdrop_get_form',
     'page arguments' => array('maillog_admin_settings'),
     'access arguments' => array('administer maillog'),
     'type' => MENU_NORMAL_ITEM,
@@ -118,12 +140,12 @@ function maillog_maillog_delete($maillog) {
   $idmaillog = $maillog['idmaillog'];
   $result = db_query("DELETE FROM {maillog} WHERE idmaillog = :id", array(':id' => $idmaillog));
   if ($result == FALSE) {
-    drupal_set_message(t('A Problem occured when deleting Mail with ID !idmaillog !', array('!idmaillog' => $idmaillog)));
+    backdrop_set_message(t('A Problem occured when deleting Mail with ID !idmaillog !', array('!idmaillog' => $idmaillog)));
   }
   else {
-    drupal_set_message(t('Mail with ID !idmaillog has been deleted!', array('!idmaillog' => $idmaillog)));
+    backdrop_set_message(t('Mail with ID !idmaillog has been deleted!', array('!idmaillog' => $idmaillog)));
   }
-  drupal_goto('admin/reports/maillog');
+  backdrop_goto('admin/reports/maillog');
 }
 
 /**
@@ -142,34 +164,36 @@ function maillog_maillog_page($maillog) {
  * Implementation of the module settings form.
  */
 function maillog_admin_settings() {
+  $config = config('maillog.settings');
   $form = array();
 
+  $form['#config'] = 'maillog.settings';
   $form['maillog_send'] = array(
     '#type' => 'checkbox',
     '#title' => t("Allow the e-mails to be sent."),
-    '#default_value' => variable_get('maillog_send', TRUE),
+    '#default_value' => $config->get('maillog_send'),
   );
 
   $form['maillog_log'] = array(
     '#type' => 'checkbox',
     '#title' => t("Create table entries in maillog table for each e-mail."),
-    '#default_value' => variable_get('maillog_log', TRUE),
+    '#default_value' => $config->get('maillog_log'),
   );
 
   $form['maillog_devel'] = array(
     '#type' => 'checkbox',
     '#title' => t("Display the e-mails on page using devel module (if enabled)."),
-    '#default_value' => variable_get('maillog_devel', TRUE),
+    '#default_value' => $config->get('maillog_devel'),
   );
 
   if (module_exists('mailsystem')) {
     $mailsystem_classes = mailsystem_get_classes();
-    // maillog will be unset, because ist would cause an recursion
+    // maillog will be unset, because it would cause an recursion
     unset($mailsystem_classes['MaillogMailSystem']);
     $form['maillog_engine'] = array(
       '#type' => 'select',
       '#title' => t("Select the mail system which should be used."),
-      '#default_value' => variable_get('maillog_engine', 'DefaultMailSystem'),
+      '#default_value' => $config->get('maillog_engine'),
       '#options' => $mailsystem_classes,
     );
   }
@@ -183,7 +207,7 @@ function maillog_admin_settings() {
 function maillog_views_api() {
   return array(
     'api' => 3,
-    'path' => drupal_get_path('module', 'maillog') . '/includes/',
+    'path' => backdrop_get_path('module', 'maillog') . '/includes/',
   );
 }
 
diff --git a/tests/maillog.tests.info b/tests/maillog.tests.info
new file mode 100644
index 0000000..427e037
--- /dev/null
+++ b/tests/maillog.tests.info
@@ -0,0 +1,5 @@
+[MaillogUnitTest]
+name = Maillog unit tests
+description = Test the main Maillog functionality.
+group = Maillog
+file = maillog.unit.test
diff --git a/tests/maillog.unit.test b/tests/maillog.unit.test
index 9276cba..806d26f 100644
--- a/tests/maillog.unit.test
+++ b/tests/maillog.unit.test
@@ -4,18 +4,7 @@
  * Unit-ish tests for the Maillog module.
  */
 
-class MaillogUnitTest extends DrupalWebTestCase {
-
-  /**
-   * {@inheritdoc}
-   */
-  public static function getInfo() {
-    return array(
-      'name' => 'Maillog unit tests',
-      'description' => 'Test the main Maillog functionality.',
-      'group' => 'Maillog',
-    );
-  }
+class MaillogUnitTest extends BackdropWebTestCase {
 
   /**
    * {@inheritdoc}
@@ -30,29 +19,27 @@ class MaillogUnitTest extends DrupalWebTestCase {
     parent::setUp($modules);
 
     // Take over the email system.
-    variable_set('mail_system', array('default-system' => 'MaillogMailSystem'));
+    config_set('system.mail', 'default-system', 'MaillogMailSystem');
 
     // Don't allow emails to be delivered.
-    variable_set('maillog_send', FALSE);
+    config_set('maillog.settings', 'maillog_send', FALSE);
 
     // Log all emails.
-    variable_set('maillog_log', TRUE);
+    config_set('maillog.settings', 'maillog_log', TRUE);
   }
 
   /**
    * Confirm that SimpleTest has taken over the 'mail_system' variable.
    */
   function testSetup() {
-    $enabled = variable_get('mail_system', array());
-    $should_be = array(
-      'default-system' => 'MaillogMailSystem',
-    );
+    $enabled = config_get('system.mail', 'default-system');
+    $should_be = 'MaillogMailSystem';
     $this->assertEqual($enabled, $should_be, 'Maillog is controlling mail delivery.');
 
-    $delivery = variable_get('maillog_send', FALSE);
+    $delivery = config_get('maillog.settings', 'maillog_send');
     $this->assertEqual($delivery, FALSE, 'Email delivery is disabled.');
 
-    $logging = variable_get('maillog_log', TRUE);
+    $logging = config_get('maillog.settings', 'maillog_log');
     $this->assertEqual($logging, TRUE, 'Email delivery is being logged.');
   }
 
@@ -70,17 +57,18 @@ class MaillogUnitTest extends DrupalWebTestCase {
     $to_email = 'to_test@example.com';
     $reply_email = 'reply_test@example.com';
     $params = array();
-    drupal_mail('maillog_tests', 'maillog_basic_test', $to_email, $langcode, $params, $from_email);
+    backdrop_mail('maillog_tests', 'maillog_basic_test', $to_email, $langcode, $params, $from_email);
 
     // Compare the maillog db entry with the sent mail.
     $logged_email = $this->getLatestMaillogEntry();
     $this->assertTrue(!empty($logged_email), 'The test email was captured.');
     $this->assertEqual($to_email, $logged_email['header_to'], 'Email "to" address is correct.');
-    $this->assertEqual($from_email, $logged_email['header_from'], 'Email "from" address is correct.');
-    $this->assertEqual($from_email, $logged_email['header_all']['From'], 'Email "from" header is correct.');
+    $this->assertEqual($sender, $logged_email['header_from'], 'Email "from" address is correct.');
+    $this->assertEqual($from_email, $logged_email['header_all']['Reply-to'], 'Email "from" address is correct.');
+    $this->assertEqual($sender, $logged_email['header_all']['From'], 'Email "from" header is correct.');
     $this->assertEqual($sender, $logged_email['header_all']['Sender'], 'Email "sender" header is correct.');
     $this->assertEqual($sender, $logged_email['header_all']['Return-Path'], 'Email "return-path" header is correct.');
-    $this->assertEqual('Drupal', $logged_email['header_all']['X-Mailer'], 'Email "x-mailer" header is correct.');
+    $this->assertEqual('Backdrop CMS', $logged_email['header_all']['X-Mailer'], 'Email "x-mailer" header is correct.');
     $this->assertEqual(t('Test email subject'), $logged_email['subject'], 'Email subject is correct.');
     $this->assertEqual(t('Test email body.') . "\n", $logged_email['body'], 'Email body is correct.');
   }
@@ -95,7 +83,7 @@ class MaillogUnitTest extends DrupalWebTestCase {
     $from_email = 'from_test@example.com';
     $to_email = 'to_test@example.com';
     $params = array();
-    drupal_mail('maillog_tests', 'maillog_long_subject_test', $to_email, $langcode, $params, $from_email);
+    backdrop_mail('maillog_tests', 'maillog_long_subject_test', $to_email, $langcode, $params, $from_email);
 
     // Compare the maillog db entry with the sent mail.
     $logged_email = $this->getLatestMaillogEntry();
@@ -105,7 +93,7 @@ class MaillogUnitTest extends DrupalWebTestCase {
     $subject = str_repeat(t('Test email subject') . ' ', 20);
 
     // Duplicate the string trimming.
-    $subject_trimmed = drupal_substr($subject, 0, 255);
+    $subject_trimmed = backdrop_substr($subject, 0, 255);
 
     $this->assertEqual($subject_trimmed, $logged_email['subject'], 'Email subject was trimmed correctly.');
     $this->assertNotEqual($subject, $logged_email['subject'], 'Email subject is not untrimmed.');
@@ -122,7 +110,7 @@ class MaillogUnitTest extends DrupalWebTestCase {
     $from_email = 'from_test@example.com';
     $to_email = 'to_test@example.com';
     $params = array();
-    drupal_mail('maillog_tests', 'maillog_subject_xss_test', $to_email, $langcode, $params, $from_email);
+    backdrop_mail('maillog_tests', 'maillog_subject_xss_test', $to_email, $langcode, $params, $from_email);
 
     // Compare the maillog db entry with the sent mail.
     $logged_email = $this->getLatestMaillogEntry();
@@ -132,16 +120,16 @@ class MaillogUnitTest extends DrupalWebTestCase {
     $this->loginAdminUser();
 
     // Load the admin list page.
-    $this->drupalGet('admin/reports/maillog');
+    $this->backdropGet('admin/reports/maillog');
     $this->assertResponse(200);
-  
+
     // Confirm that the page has been defanged.
     $this->assertText('XSS test');
     $this->assertRaw(check_plain($xss_string));
     $this->assertNoRaw($xss_string);
 
     // Load the maillog view page.
-    $this->drupalGet('maillog/details/' . $logged_email['idmaillog']);
+    $this->backdropGet('maillog/details/' . $logged_email['idmaillog']);
     $this->assertResponse(200);
 
     // Confirm that the page has been defanged.
@@ -150,7 +138,7 @@ class MaillogUnitTest extends DrupalWebTestCase {
     $this->assertNoRaw($xss_string);
 
     // Check the title.
-    $this->assertTitle($xss_string . ' | ' . variable_get('site_name', 'Drupal'));
+    $this->assertTitle($xss_string . ' | ' . config_get('system.core', 'site_name'));
   }
 
   /**
@@ -164,7 +152,7 @@ class MaillogUnitTest extends DrupalWebTestCase {
     $from_email = 'from_test@example.com';
     $to_email = 'to_test@example.com';
     $params = array();
-    drupal_mail('maillog_tests', 'maillog_body_xss_test', $to_email, $langcode, $params, $from_email);
+    backdrop_mail('maillog_tests', 'maillog_body_xss_test', $to_email, $langcode, $params, $from_email);
 
     // Compare the maillog db entry with the sent mail.
     $logged_email = $this->getLatestMaillogEntry();
@@ -174,7 +162,7 @@ class MaillogUnitTest extends DrupalWebTestCase {
     $this->loginAdminUser();
 
     // Load the maillog view page.
-    $this->drupalGet('maillog/details/' . $logged_email['idmaillog']);
+    $this->backdropGet('maillog/details/' . $logged_email['idmaillog']);
     $this->assertResponse(200);
 
     // The body field will be passed through check_plain, which will remove all
@@ -209,7 +197,7 @@ class MaillogUnitTest extends DrupalWebTestCase {
    */
   function loginAdminUser() {
     $user = $this->createAdminUser();
-    $this->drupalLogin($user);
+    $this->backdropLogin($user);
   }
 
   /**
@@ -224,11 +212,11 @@ class MaillogUnitTest extends DrupalWebTestCase {
     );
 
     // Reset the static variable used to identify permissions, otherwise it's
-    // possible the permissions check in drupalCreateUser will fail.
+    // possible the permissions check in backdropCreateUser will fail.
     $this->checkPermissions(array(), TRUE);
     cache_clear_all();
 
-    return $this->drupalCreateUser($permissions);
+    return $this->backdropCreateUser($permissions);
   }
 
 }
diff --git a/tests/maillog_tests.info b/tests/maillog_tests.info
index e38b748..63da209 100644
--- a/tests/maillog_tests.info
+++ b/tests/maillog_tests.info
@@ -1,5 +1,6 @@
 name = Maillog tests
 description = Contains helper logic for the Maillog tests.
 package = Mail
-core = 7.x
+backdrop = 1.x
+type = module
 hidden = TRUE