Missing Headers in outgoing mails

Technical assistance
1

Infos:

  • Used Zammad version: 6.3.1-1721805003.877871eb.bookworm
  • Used Zammad installation type: package
  • Operating system: Debian 12
  • Browser + version: Chrome 128.0.6613.138

Expected behavior:

  • An outgoing mail should retain the Gitlab specific headers.
    This would enable automatic assignment in Gitlab.

Actual behavior:

  • An incoming email from Gitlab is assigned to a ticket and as soon as you reply by email from Zammad, all Gitlab-specific X-headers (e.g. X-GitLab-Issue-ID: 12345) are no longer existent in the sent email.
    Unfortunately, this means that Gitlab is unable to assign the email to a specific issue and replies with an error.

Steps to reproduce the behavior:

  • Trigger mail from Gitlab to zammad
  • Reply in Zammad via Mail
2

Hi,

anyone an idea how to convince zammad to leave the x-headers in the mail?

3

There is no way to keep them where they are.
I just checked with a Github mail in my Thunderbird: My thunderbird also removes the X-Headers. I personally think that this is expected, because these headers are relevant for the current routing of the mail (so when you received it), not for sending it.

4

Many thanks you for the info.
In fact, I only just noticed that Gitlab also uses references and reply-to to assign replies.
But for some reason there seem to be problems here when I send an email from Zammad, as these cannot be assigned by Gitlab.
If I reply directly from the email account associated with Zammad, it works without any problems.
Are there any other things in the mail setup in Zammad that I could check?

5

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