[Dovecot] Unexplained MDA bounce backs

[Charles Marcus]

Dean Manners, on 1/14/2008 3:39 AM, said the following:
> -Postfix 2.3.4 with MySQL backend
> -Dovecot 1.0.rc26 with MySQL backend, using only deliver.

Both of these are old, but the dovecot is very possibly the problem - if 
memory serves, that version was buggy.

You really need to update to a current release version (1.0.11 is 
current), whether it fixes this particular problem or not.

I also strongly recommend updating postfix... 2.3.4 is over a year - and 
more importantly 9 patch levels AND a full release+6 patch levels - old, 
with another major release (2.5) imminent.

Lots of good reasons to upgrade postfix, but normal caveats apply - ie, 
read the release notes to see if anything changed that will require you 
to modify current config files.

-- 

Best regards,

Charles