Hello,

I am the mailing list administrator for a charity cycling team. The list currently has about 150 members. The list and our website is hosted by a local ISP who is running Mailman 2.1.34.

We seem to be having all too frequent occurrences of multiple bounces that seem to be related only to the domain of the address recipient. Previously we have had issues with AOL.com and Mindspring.com email domains. The main result of these are disabled subscriptions due to excessive bounces.

The latest in this continuing saga occurred on Monday morning when I received notification that 12! list members with Yahoo.com email domain addresses had been unsubscribed from the list! I am assuming that this is the sum total of ALL yahoo addresses in our list.

The interesting thing about this occurrence other than losing the name associated with the email address (since the members were unsubscribed not just disabled) is that I NEVER received ANY bounce notifications other than the unsubscribe notification. I find this quite odd and unsettling considering that the list shows that it IS configured to send earlier bounce notifications and I have received them in the past... just not leading up to this latest incident. The typical error message is:

jonxx_dajxxn@yahoo.com jones_dajuan@yahoo.com has been removed from MSing-ride. (disabled address)

So I guess that my question is whether or not these types of problems are now endemic to all email lists or if....Our ISP is technically "challenged" and

1. Doesn't know how to properly configure Mailman to send out the requested notifications.
2. Continues to get blacklisted for sending SPAM even though they don't.

Thanks for any insight.

Steve