On Tue, 01 Sep 2015 18:42:33 +0000, Archil Imnadze <archil@???>
wrote:
>I have an Exim instance running on Debian Jessie. For each mail that is
>received by Exim I would like to check if the reverse DNS for the sender
>domain matches the connecting IP and if not reject the mail.
Bad idea.
>Consider the following scenarios.
>* A spammer sends an email from the IP 94.123.123.123 with
>info@??? in the "From" field but the domain
>spammerwebsite.com doesn't resolve to 94.123.123.123. I want this to be
>blocked.
Bad idea.
>* A spammer sends an email from the IP 94.123.123.123 with
>info@??? in the "From" field. In this case example.com is my own
>domain and it cannot be located at 94.123.123.123. I want this to be
>blocked too.
So you do not want to use your domain when you're on the road?
Greetings
Marc
--
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Marc Haber | " Questions are the | Mailadresse im Header
Mannheim, Germany | Beginning of Wisdom " | http://www.zugschlus.de/
Nordisch by Nature | Lt. Worf, TNG "Rightful Heir" | Fon: *49 621 72739834
