On Thu, Mar 18, 1999 at 04:35:49PM +0100, Harald Hanche-Olsen wrote:
> - "Chris Garrigues" <[EMAIL PROTECTED]>:
>
> | Is it possible that these were domains in which they had just added
> | the MX and the old zone data was still cached in various places in
> | the DNS, so your qmail didn't have access to the latest zone yet?
>
> But then his server would not even be aware that it was an MX for the
> domain in question, so the problem simply would not arise.
If the sending mailer sends mail to the best-MX frequently it might
have the MX records cached in his DNS server.
Then the best-MX ist down and it tries the backup-MX. The mailserver
there does a DNS query which does not succeed and *poof* ??
\Maex
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