From: MrC (lists-postfixcappella.us)
Date: Mon Nov 19 2007 - 10:52:30 CST

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

MrC wrote:
> Rocco Scappatura wrote:
>> Hello,
>>
>> my SMTP relay server accept also message for a domain 'domain.it'.
>>
>> Since some days I have changed the DNS so that the MXs for that domain
>> point to other mail servers.
>>
>> However the SMTP server pointed by the old MX still receive a lot of
>> spam messages, all rejecte by DNSBL (spamhaus.org).
>
> If I'm understanding you, the old MX should no longer be accepting mail
> for the domain. In that case, be sure to remove the domain from
> mydomain or any virtual * domains.

Sorry, meant mynetworks above.

>
> Some spam bots cache the MX for the domain, avoiding DNS lookups, and
> will continue sending to your decommissioned server for months. Just
> reject them as unknown users.
>
> MrC
>

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]