undefinied method charset for nil:nilClass

[peterbeck]

Using Redmine 3.2.1 with this plugin. While sendig updates from tickets via webinterface, everything's fine and inline images are displayed.
But when I try to send/update an issue via mail I get this error and the mail stucks in the queue, even if there is no inline (or any other) image attached but (in this case) a pdf document:

mailqueue:

(temporary failure. Command output: Failed to contact your Redmine server (500). Posting to http://localhost:80/mail_handler... Response received: 500)

redmine log:

NoMethodError (undefined method `charset' for nil:NilClass):
  plugins/redmine_email_images/lib/email_receive_inline_patch.rb:43:in `decode_part_body'
  plugins/redmine_email_images/lib/email_receive_inline_patch.rb:28:in `decoded_html'
  plugins/redmine_email_images/lib/email_receive_inline_patch.rb:15:in `add_attachments_with_remove_inline_images'
  app/models/mail_handler.rb:243:in `receive_issue_reply'
  app/models/mail_handler.rb:166:in `dispatch'
  app/models/mail_handler.rb:150:in `receive'
  app/models/mail_handler.rb:49:in `block in receive'
  app/models/mail_handler.rb:46:in `receive'
  app/controllers/mail_handler_controller.rb:29:in `index'

is that a bug or is something wrong with my database (encoding, whatever ?)

some further details about my environment (running on Debian Jessie 8.4):

Environment:
  Redmine version                3.2.1.stable
  Ruby version                   2.1.5-p273 (2014-11-13) [x86_64-linux-gnu]
  Rails version                  4.2.5.2
  Environment                    production
  Database adapter               Mysql2
SCM:
  Git                            2.1.4
  Filesystem                     
Redmine plugins:
  due_date_reminder              0.3.2
  periodictask                   2.0.0
  recurring_tasks                2.0.0-pre
  redmine_checklists             3.1.3
  redmine_email_images           0.1.1
  redmine_ics_export             3.0.1.dev
  redmine_issue_completion       0.0.2
  redmine_lightbox2              0.2.5
  redmine_local_avatars          1.0.0
  redmine_mail_reminder          3.0.0.0001
  redmine_monitoring_controlling 0.1.1
  redmine_silencer               0.4.1
  redmine_stats                  0.0.3
  redmine_target_client_project  0.1.0
  redmine_timesheet_plugin       0.7.0
  vault                          0.0.5

Regards
Peter

[jared-gs]

Peter,

I was having the same issue with this plugin. Redmine was importing emails successfully but was returning non-zero, which meant Postfix would mark them as deferred and would keep retrying the command (which would create multiple new tickets).

I ended up resolving this issue by using the INSANEWORKS fork of this plugin.