On Tue, 2 Jul 2002, Philip Hazel wrote:
> On Tue, 2 Jul 2002, Matthew Byng-Maddick wrote:
>
> > Actually, the correct thing to do would be to just use
> > RCPT TO:<postmaster>
> > on the relay box.
>
> Indeed.
>
> > Yes, under 2821, postmaster is allowed (as a MUST, I believe) to be
> > unqualified.
>
> Yes.
>
> > As a side question, will exim4 allow RCPT TO:<postmaster>, or am I going to
> > have to patch it?
>
> No patch needed. I read the RFC. From the source code:
>
> /* If the recipient address is unqualified, reject it, unless this is a
> locally generated message. However, unqualified addresses are permitted
> from a configured list of hosts and nets - typically when behaving as
> MUAs rather than MTAs. Sad that SMTP is used for both types of traffic,
> really. The flag is set at the start of the SMTP connection.
>
> RFC 1123 talks about supporting "the reserved mailbox postmaster"; I always
> assumed this meant "reserved local part", but the revision of RFC 821 and
> friends now makes it absolutely clear that it means *mailbox*. Consequently
> we must always qualify this address, regardless. */
>
> Exim qualifies "postmaster" with the value of qualify_domain.
