Tony G wrote:
It seems I am getting duplicate messages from mailman v2.1.5 when senders send both TO and CC to the list. For some reason no one else in the list is acknowledging this issue so I look like an idiot complaining about it, but I'm seeing several instances of it per day.
Brad has already provided good information in his reply. I just want to add that it looks to me like in this case, the sender's MUA is actually giving the list address twice (once for To: and once for Cc:) to the MTA, and the MTA is not dropping the duplicate recipient. Thus, two copies of the post are actually being sent to the list. Do the duplicates appear twice in archives and/or digests? (I think the duplicate may be dropped from the archives if the message-id is the same, but I'm not sure).
Other subscribers may not see this because their incoming MTA/MUA may drop duplicate message-ids.
-- Mark Sapiro msapiro@value.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan