Internet -- mail gateway (z5.0.9) -- mail store 1 ( z6.0.3)
-- mail store 2 ( z6.0.3)
The "mail gateway" is doing anti-virus and anti-spam and then transports the "cleaned" mail to end users at the two mail stores down stream. There is no real end users at mail gateway.
This configuration is working right now and have done so for 1-2 years.
At a test "mail gateway" we upgraded to z6.0.6 and now this setup is not working. There is no Anti-SPAM check done for transported mails, only anti-virus check is done (ie X-Virus-Scanned: amavisd-new, no X-Spam-Flag)
If I try send a mail to a local dummy account on the gateway it gets SPAM-checked.
The "transport" of mail messages to the mail store machines is done with:
# su - zimbra
$ zmlocalconfig -e postfix_transport_maps=ldap:/opt/zimbra/conf/ldap-transport.cf,hash:/etc/zimbra/transport
$ postconf -ev relay_recipient_maps=hash:/etc/zimbra/relay_recipients
$ postconf -ev relay_domains=hash:/etc/zimbra/relay_domains
/etc/zimbra/transport contains down-stream mail store machines
/etc/zimbra/relay_recipients contains all end users
/etc/zimbra/relay_domains contains the mail domains we allow relay of
(ie down stream mail domains)