satishkumarp2k1:
>
>
> > So, be sure that you don't have u...@domain forms in $alias_maps.
>
> Thanks. Every line in the alias files defined in $alias_maps is of the
> following form:
>
> USER: u...@subx.domain.com
>
> We are not using the form "u...@domain" for alias entries (instead just
> USER). I would like to inform again that the setup is working for all the
> users most of the times except few cases, which happens at very random
> (around 5-10 emails so out of roughly 70000*30 emails in a month get
> bounced).
>
> I am guessing whether "local" might be unable to perform the lookups in
> alias tables under heavy load - this is just a guess, but I might be wrong.
> Need advise from experts.
According to the main.cf information in the problem report,
local_recipient_maps=$alias_maps and all those maps are local files,
so that would exclude the usual nsswitch foul-ups.
There are no confirmed reports on this list that Postfix "forgets"
users in local alias database files. For this reason I will assume
with confidence that you have some buggy database library.
Postfix uses the same system library routines to access alias_maps
in the smtpd(8) and local(8) programs. If smtpd(8) finds users that
local(8) does not find, then I suggest that you consider using a
more robust database implementation.
Wietse
