On Sat, 15 Nov 2008 18:22:20 -0600
Alexey Melnikov <alexey.melnikov@xxxxxxxxx> wrote:
If answer to either one is "yes", how are the ACL identifiers
matched?
I would treat the MAIL FROM sender as the username, canonicalizing it
first. If the sender has mailbox on the same server, then you can
strip plus addressing from it.
And there is also the possibility of using an additional parameter in
the MAIL FROM:
RFC 2554 SMTP Service Extension for Authentication
paragraph 5. The AUTH parameter to the MAIL FROM command