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MX records pointing to 127.0.0.1 (was Re: Correction: Recipient verification functionality request)
From: wolfgang (spamfiltered
gmx.net)
Date: Tue Jul 01 2003 - 19:16:50 CDT
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In an older episode (Wednesday 02 July 2003 01:45), Wietse Venema wrote:
> Correction: permit_mx_bckup should precede reject_unauth_destination.
i ran into a problem with permit_mx_backup
the MX record for a foreign recipient domain was set to 127.0.0.1 on their DNS
server, so postfix was accepting and relaying mail to them.
would reject_unauth_destination preceding permit_mx_backup prevent such
"abuse"?
since we do currently not really need the mx_backup functionality, i disabled
it.
regards,
wolfgang
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