[kmail2] [Bug 441073] New: Configuring to send using sendmail doesn't work until after restart

[David Jarvie]

https://bugs.kde.org/show_bug.cgi?id=441073

            Bug ID: 441073
           Summary: Configuring to send using sendmail doesn't work until
                    after restart
           Product: kmail2
           Version: 5.15.3
          Platform: Debian stable
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: djarvie at kde.org
  Target Milestone: ---

SUMMARY

I configured KMail in a new system installation, to use sendmail to send mails.
However, mails failed to send until after a system restart.

STEPS TO REPRODUCE
1. Install and configure postfix as a sendmail mechanism. I tested that this
was working by successfully sending emails via the command line.

2. Use KMail's settings dialog (Accounts section, Sending tab) to set up a
sendmail transport. This was the first and only sending method which I
configured.

OBSERVED RESULT

Attempting to send emails using KMail always failed. They just remained in the
outbox. No error messages.

Using akonadiconsole, I restarted the Mail Dispatcher Agent. This made no
difference.

Following a system restart overnight, mails now send successfully.

EXPECTED RESULT

It should not require a system restart in order for this configuration to start
working. Whatever it was that needed to be reset by a system restart should
automatically be done without user intervention, as soon as a sendmail
transport is configured by the user.

This wasted quite a bit of time investigating the issue yesterday. This bug
might prompt some people to abandon their attempt to use sendmail and switch to
another method. 

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Debian 11
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 5.78.0
Qt Version: 5.15.2

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