My wife and I are both @comcast.net email users who are included in a few google groups (addresses @goglegroups.com) and for at least several weeks now we have NOT been receiving some of the emails sent to us via these groups. (Maybe some are getting through, but there have been very notable exceptions.) I see on this Forum that this is an old problem that many others have experienced. As far as I am aware, when we don't get an email, the party sending to the googlegroup address is a gmail user, but there may be exceptions.
In addition, within the long Forum thread on this topic, I have seen it recommended to turn OFF the spam filterin of our @comcast.net email, via xfinity connect>settings>advanced. HOWEVER, whenever I turn the spam filtering OFF and return to the setting, I find it has turned itself back on again. Given the astronomic cost of xfinity service, this is really maddening.
So the only thing turning the spam filter off would do is filter spam emails to your inbox, even ones you dont want. Regardless, if its being dropped then you wont get it regardless. Feel free to PM me the exact email the emails are coming from and i can investigate it for you.
fyi, starting today all spam emails are being delivered to spam even if filtered for deletion due to high spam content unless there is specifically an IP block on the sender. I believe this change also implemented the function that you cant turn off spam filtration since we are loosening restrictions on what gets through.
click my name and click the blue button "send message". You may need to check your account settings to ensure you have the Private Message option enabled.