I am experiencing this issue also with a null client configuration as specified at http://www.postfix.org/STANDARD_CONFIGURATION_README.html#null_client
myorigin = $mydomain relayhost = $mydomain inet_interfaces = loopback-only local_transport = error:local delivery is disabled I'm running an Amazon EC2 instance using the current natty AMI from alestic.com -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/769514 Title: Mail not sent unless relayhost has a port number -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
