[Dovecot] RFE: please add mail queue id to 'sent vacation response' log line

[Andreas Schulze]

Maciej Uhlig:

> May I ask to add receiving smtp server mail queue id to sieve 'sent
> vacation response' log line?

Hello,

I like to support that request.

It would allow me to exactly follow the mailflow in case any user  
claim "I did not get a vacation response."
With a complete QueueID chain I could turn that into "You did not  
*read* the vacation response"
Does not happen often but would be help full...

Need to mention:
it rely on "submission_host = $SMTP-SERVER" in dovecot.conf.
No idea how it looks on submission via /usr/sbin/sendmail...

Andreas