...

• JRA-161 : Be able to customize outgoing emails per project
• JRA-2456 : Email handlers should send email back upon rejection.
• JRA-3031 : mail integration should bounce to unregistered emails
• JRA-3669 : Show image attachments inline with comments
• JRA-6093 : Error response if issue creation by mail fails
• JRA-6095 : Email forwarded task forces Major priority (issue content is close to being satisfied through per-project defaults)
• JRA-6206 : Email Handler should be able to reference multiple projects
• JRA-6207 : Add attachments to notification emails
• JRA-6348 : Add capability to filter email messages before Issue creation
• JRA-7728 : Filter incomming e-mails
• JRA-7731 : Templated Issue Creation
• JRA-8073 : Add ability to specify the default component in the CreateOrCommentHandler
• JRA-8464 : Check if incoming email subject matches any issue summaries to determine if they are comments (Nagios FieldProcessor does this)
• JRA-8759 : Email only interface to Jira (Getting there...)
• JRA-9884 : Ability to black list e-mail addresses for sending and receiving e-mail messages
• JRA-10372 : CreateIssueHandler: Add a group creation option to decide in which group the user will be automatically created
• JRA-10503 : Mailbox monitoring should discard emails from <regex>
• JRA-10539 : Need to disable user recognition of sender in Message Handlers (ie set a defaultReporter)
• JRA-10558 : CreateOrCommentHandler should have parameter for priority
• JRA-11074 : Mail service should ignore obvious mail bounces
• JRA-12649 : CreateOrComment handler should accept emails without a subject or reply with a failure notice
• JRA-12650 : There needs to be some way to send out an email acknowledgement for issues created via email handler
• JRA-12945 : Remove the domain part of email address when autocreating users
• JRA-14260 : Create Issue from Email Handler - Create Username Flexibility
• JRA-14329 : Create users that do not exist from the CC list of e-mails
• JRA-14973 : AbstractMessageHandler patch (provides pluggable findUserByEmail, and external property file support for handler params + inbound issue creation fixes for Component,Priority,IssueType,Assignee)
• JRA-15003 : add handler-parameters to Create-Issue Handler
• JRA-15060 : Allow issues to be created from emails that do not have a subject
• JRA-15350 : Ability for automatic issue assignment when issues are logged via e-mail.
• JRA-15431 : Allow anonymous comments from email when no matching user
• JRA-19509 : Add parameter to email handlers not to add new users to the "JIRA Users" global permisisons (well, anonymous email creation is support achieving this)
• JRA-19874 : CreateOrCommentHandler should fall back to defaultreporter if email user does not have permissions to perform operation
• JRA-21475 : Trailing space in email address breaks mail handler (from 0.9.5)

Not Supported Yet

Cryptographic support

• JRA-18156 : JIRA handling of digitally-signed emails (from 1.0, removed in 1.7.x due to lack of adoption), a more standards compliant SMIME feature has been considered - 

  Jira Legacy
  server System JIRA serverId 31e1f342-5dce-3979-a43c-85899d565476 key JEMH-2522

   but isn't an immediate candidate for development.