2.3.17: Panic on LMTP deliveries

[Aki Tuomi]

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@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