dovecot - Dec 2021 - 2.3.17: Panic on LMTP deliveries

Hello!

While searching for an explanation for the fact that after updating to
Dovecot 2.3.17_1 (FreeBSD 12.2) I suddenly stopped receiving emails and
following error messages appeared in the dovecot.log,

/Error: lmtp-server: conn unix:uid=125 [1]: rcpt user at domain.tld:
duplicate db: User user at domain.tld doesn't have home dir set, disabling
duplicate database//
//
//Dec 12 08:42:54 lmtp(user at
domain.tld)<80363><z7AxDf6ntWHrOQEAp6O1gg>:
Panic: file imem.c: line 65 (i_strconcat): assertion failed: (str1 != NULL)

/I found your answer here
<https://www.mail-archive.com/dovecot at dovecot.org/msg84893.html>:

/Problem confirmed. This is a 2.3.17 regression. Tracking internally as
DOP-2659./
/
Regards,
Stephan./


But what exactly does your answer mean for those affected?

That all users who use Dovecot and use the whole thing without
"mail_home" and only with "mail_location", must wait until a
BugFix
appears to be able to receive emails again?


Thanks in advance and have a nice advent sunday
Volker

P. S.:
In my case dovecot -n shows

/mail_location = maildir:/var/mail/vhosts/%d/%n//
//mail_home = /var/mail/vhosts/%d/%n

/so mail_home is even set!/
/




-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://dovecot.org/pipermail/dovecot/attachments/20211212/fd7d7f42/attachment.htm>

On 12 December 2021 8.37.23 UTC, Volker <pcmagazine at gmx.net>
wrote:
>Hello!
>
>While searching for an explanation for the fact that after updating to
>Dovecot 2.3.17_1 (FreeBSD 12.2) I suddenly stopped receiving emails and
>following error messages appeared in the dovecot.log,
>
>/Error: lmtp-server: conn unix:uid=125 [1]: rcpt user at domain.tld:
>duplicate db: User user at domain.tld doesn't have home dir set,
disabling
>duplicate database//
>//
>//Dec 12 08:42:54 lmtp(user at
domain.tld)<80363><z7AxDf6ntWHrOQEAp6O1gg>:
>Panic: file imem.c: line 65 (i_strconcat): assertion failed: (str1 != NULL)
>
>/I found your answer here
><https://www.mail-archive.com/dovecot at dovecot.org/msg84893.html>:
>
>/Problem confirmed. This is a 2.3.17 regression. Tracking internally as
>DOP-2659./
>/
>Regards,
>Stephan./
>
>
>But what exactly does your answer mean for those affected?
>
>That all users who use Dovecot and use the whole thing without
>"mail_home" and only with "mail_location", must wait
until a BugFix
>appears to be able to receive emails again?
>
>
>Thanks in advance and have a nice advent sunday
>Volker
>
>P. S.:
>In my case dovecot -n shows
>
>/mail_location = maildir:/var/mail/vhosts/%d/%n//
>//mail_home = /var/mail/vhosts/%d/%n
>
>/so mail_home is even set!/
>/
>
You can roll back to 2.3.16 as well?

Aki