Re: a detour into SPF, was Mailing lists - assumptions

>Yes indeedy. Looks to me like bog-standard SRS. ...

>At present draft-ietf-spfbis-4408bis has this to say about the issue:
>
> o  Mediators can solve the problem by rewriting the "MAIL FROM" to be
>    in their own domain.  This means mail rejected from the external
>    mailbox will have to be forwarded back to the original sender by
>    the forwarding service.  Various schemes to do this exist though
>    they vary widely in complexity and resource requirements on the
>    part of the mediator.
>
>Does anyone seriously think this provides the necessary guidance to an
>autoforwarder developer/administrator faced with wholesale rejection of their
>forwarded mail due to SPF? Because I certainly don't.

Nobody brought it up in SPFBIS that I can recall.  SRS has been around
for a decade, and I only see it in a few academic mail forwarders and
one web host's mail gateway.  The problem that SRS solves evidently
isn't one that people care enough about very much.

R's,
John

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