They tried to send me documents to multiple comcast.net accounts. Showed it went through from their end but received nothing.
I have sent messages that dont even show being sent but no error message. When I send a group message that wasn't all gmail, they got it, but when they replied to message only the non comcast.net got it
If you are in the new email format the path is different. On the Inbox page click on the gear icon in the upper right corner, then on Settings. Under Mail you will see "Filter rules". Click on that and you will see any filters you have set up.