On Jan 3, 2011, at 9:36 PM, Smith, Craig A wrote: > John Hawley wrote: > >> I've run a mail server on comcast for about 5 years with no problems >> with blockage. I do have to use them as a relay to get around the >> problem of mail rejection from a source ip being in a dynamic range. > > Same here. Once Gmail and others stopped accepting mail from my > dynamic ip address, I used the smtp.comcast.net relay on port 25. > > A few months ago, Comcast stopped doing that. I understand they still > relay on port 587 but I haven't figured out how to make it work > (requires encryption, Comcast user-id and password). > > If anyone has been able to make this work, I would appreciate any > pointers. I recommend a Comcast.net account, subscription and using those passwords and usernames. Works for me.