Best solution: Business class. The problem with yours is that if they catch whiff of what you're doing you'll find yourself without any service at all. On Feb 29, 2012, at 11:20 AM, Smith, Craig A wrote: > Lots of good recommendations here. > > Slightly off-topic, but maybe someone can help me relay around a residential Comcast block? > > I've asked this question before - but didn't get (or understand) what I need to do. I know I need to switch from port 25 to port 587 and this may involve some cryptography. > > If anyone actually has this working with Postfix or sendmail, I would be interested in duplicating your solution. I don't need anything fancy - just want to run some Mailman lists out of my basement. > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list