Postfix: Relay Access Denied; address not listed for hostname localhost
Ubuntu 10.04, running Postfix, smarthost via Comcast.
The following solution fixed my Postfix problem:
REMOVE localhost from IPv6 section
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
Restart the networking
Now I am able to send emails outside my local network.
Last edited by ibo765; 23rd August 2010 at 05:35.