Yes. I got the same issue… and when someone replies, all users in the mailing list receive it… that’s why I would see a ton of replies saying please remove me from your mailing list. Very annoying. The only solution I found was to create an inbox rule to reject those, as I couldn’t unsubscribe
I just block the group address on the MTA, but it doesn't matter. In all instances so far when it came to my attention the group was already deleted. Next time they will use a different group and I don't want to blanket ban all Google Group mail for my users.
It's not even that much of a hassle. What worries me is that I don't understand why someone would go through the trouble of doing this for no apparent benefit. I hope I'm not somehow unknowingly enabling some sort of an attack on any of the entities sending these automated replies.
