[kmail2] [Bug 388871] New: KMail reports message send failure, but sends multiple copies of same message

[Rodney Baker]

https://bugs.kde.org/show_bug.cgi?id=388871

            Bug ID: 388871
           Summary: KMail reports message send failure, but sends multiple
                    copies of same message
           Product: kmail2
           Version: 5.7.0
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: commands and actions
          Assignee: kdepim-bugs at kde.org
          Reporter: rodney.baker at iinet.net.au
  Target Milestone: ---

When sending a 6.2MB message with attachments, KMail2 reported "Failed to
transport message; connection to server lost." 

The email was sent to 4 recipients (1 "To:" address, 1 CC and 2 BCC). 

The message remained in the outbox folder until moved to Drafts. Despite the
claimed failure, each recipient received 6 complete copies of the same 6.2MB
email.

Verified the failure by sending the same message from the drafts folder to
myself - I received 2 copies. The same happened with other large emails >2MB
(not sure exactly what the threshold is). 

All emails were successfully and correctly sent from Thunderbird.

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