I had a few bounces waiting for me this morning as the result of the monthly reminder run. While I like the single message for all lists idea it does cause a problem with bounce messages if I want to do something with the bounce. There is no indication in the returned info that indicates what list(s) the recipient was on. The List-id: header is apparently set to the last list on the system which they may or may not be a part off.

I would suggest either losing the List-id: header or changing it to reflect all the lists that person belongs too. If thats outside the RFC then it would probably pay to add an X-Lists: header or the like, perhaps one per mailing list the person is on.

Darren Henderson darren@jasper.somtel.com

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