Am 2025-09-01 14:04, schrieb Aki Tuomi via dovecot:
>> On 01/09/2025 14:53 EEST Robert Czechowski via dovecot <dovecot@dovecot.org> 
>> wrote:
>> 
>>  
>> Hi,
>> 
>> 
>> I stumbled upon a problem where documentation and logs no longer help
>> me.
>> 
>> After upgrading to Debian Trixie / Dovecot 2.4.1-4 I have run into the
>> following problem after fixing up most of my configuration.
>> 
>> I'm using a vmail setup with user information in a mysql database and
>> mailboxes in maildir format. Apparently %{user | domain} will not get
>> set in my SQL query when looking up users for lmtp transport:
>> 
>> 
>> With the setting
>> 
>>   userdb_sql_query = SELECT 150 AS uid, 8 AS gid FROM users WHERE
>> username = '%{user | username}' AND domain = '%{user | domain}'
>> 
>> I get the following debug log:
>> 
> 
> 
> You have
> 
> protocol lmtp {
>   auth_username_format = %{user | username}
> }
> 
> 
> Aki


You are right, that was it! Thanks a lot!

Looks like this is a Debian specific setting that was added in
conf.d/20-lmtp.conf. It's even documented in there. 🙈

Again, thanks!


Robert
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