Re: [courier-users]

On Thursday 04 January 2007 15:58, Matthew Comer wrote:
> I run a little mail server at home for family / friends. I currently am
> running 0.52.2, which I recognize is not current - and am planning to
> upgrade soon. I am running a single domain, virtual accounts (ldap), not a
> lot of bells and whistles. I do have spamassasin filtering all mail using
> a global maildroprc instruction. Generally everything runs great - I've
> been running this setup for a couple of years and it is very stable and
> reliable.
>
> Ok, the problem: I occasionally have accounts that start rejecting mail
> with "456 Address temporarily unavailable" errors. Sometimes this clears
> up on its own, sometimes I get inpatient and "courier clear" the problem.
> I understand that this is backscatter prevention, yada yada.
>
> So - what I want to know is this: how can I determine WHY courier felt
> that it could not deliver to this local account in the first place? I
> don't see anything in the logs that indicates any delivery problems right
> before the account gets blacklisted. I do have problems with spamassasin /
> clamav filtering running long sometimes - could this be the cause? How do
> I find out?
>
> Thanks!
> Matt
>

On my servers this usually means mailbox is out of quota. If that is not the
case, you should look in your maillog and search for delivery immediately
preceding first 456 message for given address. Maybe the message is still in
the queue, in which case mailq could give useful info as well. Basically,
everything should be in maillog. I have no experience with spamassasin, with
regard to clamav there is question how are you using it. If there is scanning
running too long, you should see in maillog - there are timestamps for
message reception, delivery begin etc. Just examine everything relevant into
detail.
Milan

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