In <buk090$768$1(_at_)sea(_dot_)gmane(_dot_)org> Jim Ramsay
<i(_dot_)am(_at_)jimramsay(_dot_)com> writes:
Perhaps the ESMTP 'Mail-parameters' of RFC2821 are a better way to do
this than "source routing", since source routing will still mean
something to non-modern MTAs.
To combine both ideas, in a way:
MAIL FROM:<envelope-return AT example> RESSEN envelope-sender
if the SMTP server offers the RESSEN extension.
I like this idea, but I don't think we can assume that everyone will
upgrade their MTA. This is a good optimization that could be done in
the future, however.
-wayne
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