I had this issue a year or two ago -- I belong to a Google Group and my Comcast email is not receiving any of the group emails.
Comcast did something to fix it before, but it has re-surfaced. I have not received group emails for about a month, but randomly, I received one today.
There is something between Google Groups and Comcast that occasionally doesn't work.
Comcast -- please fix it !
Thank you!
