Comment Re:Why not pass through their mail servers? (Score 1) 405
I do. As a reward for that behavior, comcast has decided to suspend my access (450 too many connects from (ip address), try again later). I've been blocked for 55 hours at this point. Support is worthless. Thay have no info on the error, can't tell me what limit I went over, can't explain why no warning was provided, and can't tell me when my outbound SMTP service will be restored.
I decided to go the route of using their server because so many sites have blacklisted my netblock. I really can't send email any other way. I can still access a few servers directly (clients, mainly), so I can also tell that comcast isn't blocking port 25 access in the Philadelphia area.