auth_username_translation and LTMP problem

Arkadiusz Miśkiewicz arekm at
Fri Aug 15 21:25:46 UTC 2014

auth_username_translation seems to be appliet on RCPT TO address of LTMP 

Why dovecot is doing that? 

And better question - is there a way to disable auth_username_translation for 
LTMP but leave enabled for the rest (imap, pop3 etc) ?


I'm doing
auth_username_translation = @=

to allow logins like aaa at to be internally translated to 
That works fine.

Now my exim delivers mail to dovecot using LTMP and it does translation or it 
own, so it does:

RCPT TO: < at>

Unfortunately looks like dovecot it doing translation one more time and 
looking in user database for where such user doesn't 
exist. Only user exists.

Arkadiusz Miśkiewicz, arekm /

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