[Mimedefang] AD: Roaring Penguin press release on Locked Addresses

David F. Skoll dfs at roaringpenguin.com
Tue Oct 18 12:49:43 EDT 2005

Matthew.van.Eerde at hbinc.com wrote:

> What exactly is used for the "Sender"

The envelope sender address, as-is.

> ... for example, could I
> subscribe to a mailing list with the unique address and expect that
> "unique sender" algorithm will be able to uniquely identify list
> mail?

It depends on the mailing list software.  I know it works fine with
mailman.  It will fail for mailing list software that changes the
envelope sender with each posting, in which case the best you can do
is lock to the domain instead of the complete sender address.



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