Marc Perkel <marc@perkel.com> wrote:
>
> But Qmail won't send the email to the backup MX?
Not if it is able to make a tcp connection to a higher-priority/lower-distance
one.
> There's a spec - everyone else follows the spec - except qmail.
Your assertion is incorrect. Re-read RFC 974:
If the list of MX RRs is not empty, the mailer should try to deliver the
message to the MXs in order (lowest preference value tried first). The
mailer is required to attempt delivery to the lowest valued MX.
Implementors are encouraged to write mailers so that they try the MXs in
order until one of the MXs accepts the message, or all the MXs have been
tried.
Only trying the lowest-distance MX is permitted. If you think otherwise,
you're discarding mail, and you've got no noe to blame but yourself.
If you want to make your hare-brained scheme work, don't accept the connection
in the first place, rather than accepting it and not accepting the message.
Charles
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Charles Cazabon <qmail@discworld.dyndns.org>
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