Re: Intermittent 550 bounced messages

2014-01-03 Thread Venkat
Note that Postfix replies with: User unknown Meaning: the recipient domain matches $mydestination, but the user was not found in $local_recipient_maps. and that Postfix did not reply with: User unknown in virtual alias table Meaning: the recipient domain matches

Re: Intermittent 550 bounced messages

2014-01-03 Thread Wietse Venema
Venkat: [ Charset ISO-8859-1 unsupported, converting... ] Note that Postfix replies with: User unknown Meaning: the recipient domain matches $mydestination, but the user was not found in $local_recipient_maps. and that Postfix did not reply with: User unknown

Intermittent 550 bounced messages

2013-12-27 Thread Venkat
Hello again List, I hope I can bother you again for an issue we have been noticing. Occasionally, we will see random 550 bounces when resolving aliases stored in LDAP. I have used postmap -q to verify the alias on each of our 3 Postfix mail relays and it resolves correctly. Our architecture is as

Re: Intermittent 550 bounced messages

2013-12-27 Thread Wietse Venema
Venkat: The final delivery address is an Exchange 2010 server. The issue we have been experiencing is that when resolving a LDAP alias, it will occasionally result in bounced messages with a 550 error. Strangely though, this happens to only a very small number of aliases. In cases where this