On 10/29/2010 10:01 AM, Rich Bishop wrote:
The first check in our smtpd_recipient_restrictions defers mail for overquota
users:
smtpd_recipient_restrictions =
check_recipient_access hash:/etc/postfix/overquota,
check_recipient_access hash:/etc/postfix/legacy-domains,
Careful there; careless entries in access tables before
"reject_unauth_destination" can make you an open relay.
http://www.postfix.org/SMTPD_ACCESS_README.html#danger
.
.
.
The overquota map file just defers messages:
x...@domain.edu 460 Mailbox Overquota
y...@domain.edu 460 Mailbox Overquota
This appears to be working fine, but I heard from a hotmail user today that a
multi-recipient message to our domain is being deferred for all
recipients. In the postfix logs I see hotmail connecting to us, attempting two
addresses that are overquota and then hanging up. My impression was that it
should send to all valid recipients and only defer for those that we return a
4xx.
The remote client should continue trying all recipients for
the message.
Are we incorrectly configured here?
Did you adjust the value of smtpd_hard_error_limit? That will
cause postfix to disconnect early. If you lowered it (to 2
maybe?) you might need to bump it back up a bit.
http://www.postfix.org/postconf.5.html#smtpd_hard_error_limit
Even if postfix disconnects for too many errors, the client
should reconnect (eventually) to try additional recipients,
but they control when the retry happens.
Or it could just be a hotmail thing.
-- Noel Jones
