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Re: draft-klensin-rfc2821bis-04: VRFY and EXPN syntax

2007-06-17 21:15:53

On Sun, 17 Jun 2007, Robert A. Rosenberg wrote:
When a SMTP Server hosts multiple domains (at least when Virtual Hosting), it knows (or should know via the FQDN passed when the remote client connects) which domain it is acting as.

Umm, what? When does the client send the server's FQDN? If you're thinking of HELO or EHLO, they include the client's name, not the server's. Even if they did include the server's FQDN, that's not enough to tell you which domain the client was interested in talking about, as there may be MXes for multiple domains pointing to the same FQDN.

Philip Guenther

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