John's friend uses Outlook and when he moved, Outlook can't find his email server. Leo says that it's likely that Comcast altered settings that prevents him from seeing it. Outlook doesn't support the standard port 25 SMTP port. So he'll have to use the secure SSL ports. He can enable that in settings, and then he should select port 465 or 993. Comcast blocks port 25. Here's a technote on how to use his email client from Comcast.