I'm in the process of slowly moving the service to a new box, which should help with the delays we've been seeing. We're using a different mail server on the new box (exim instead of sendmail), and so the move hasn't been straightforward, and we're taking it slowly and carefully. I moved over mamber.net so far, and a test domain new.0sg.net. They appear to be working fine, *but* the new IP address is causing headaches with delivery to att, yahoo, comcast, and couple of others who are greylisting it. I forgot how much trouble we had gone through over the years to get our current IP addresses whitelisted with the various services. Over the next few weeks, we plan to move all the domains over. Your patience and understanding is appreciated during the process, but we hope it will all be smooth.
The new IP address is 216.75.62.102 -- don't report it!