Fixing Comcast email without deleting my account
I use Comcast.net email via the Apple mail server and outgoing emails stopped working a couple of days ago. I don’t want to delete that mailbox and start over. I can’t find a way to edit all outgoing server settings just some of them and the ones I can say refer to Comcast as offline, though incoming emails get through fine. Where can I edit all outgoing email server settings?