Wietse: I see, port 587 is the submission port. I will use that. Thanks for the info!
Neil -- Neil Aggarwal, (972)834-1565, http://UnmeteredVPS.net/centos Virtual private server with CentOS 6 preinstalled Unmetered bandwidth = no overage charges -----Original Message----- The (legacy) smtps and (preferred) submission ports are for MUA-to-MTA connection, and are usually left open by ISPs.