Re: Stopping Frequently Forged Domains

From: Robert Dalton (no email)
Date: Sun Jun 02 2002 - 04:29:54 EDT


Wietse Venema wrote:
> Existing primitives can do this already.
>
> The example stops mail from yahoo.com/hotmail.com unless it comes from
> specific systems.
>
> Wietse
>
> smtpd_sender_restrictions =
> check_sender_access hash:/etc/postfix/strict_sender_map
>
> smtpd_restriction_classes = strict_client_domain
>
> /etc/postfix/strict_sender_map:
> yahoo.com strict_client_domain reject
> hotmail.com strict_client_domain reject
>
> strict_client_domain =
> check_client_access hash:/etc/postfix/strict_client_map
>
> /etc/postfix/strict_client_map:
> yahoo.com OK
> hotmail.com OK
> friendly.com OK
>

This works like a charm !

Thank You,

:)

---
Robert Dalton
AccessWest.com
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