Filter outbound SMTP from ISP

Paulo Roncon paulo-m-roncon at
Tue Aug 12 18:32:50 IST 2008

Helo all,

I'm wondering if there's a way to filter ALL Outbound SMTP in a ISP before it goes to their destination MTA?

I have a working mailscanner server that filters from:ALL to my domain. This is simple to achieve.
What i'm aiming at is: Filter all SMTP traffic from my ISP networks between its origins and its destination.

Is there a way to say to my MTA to accept all SMTP traffic that goes to him, filter the mails, and send them on their way?

Can this be done?


Paulo Roncon
CSO2 - Suporte operacional interno
PT Inovação - Grupo Portugal Telecom
Rua Eng. José Ferreira Pinto Basto
3810-106 Aveiro, Portugal
Tel +351 234 403 341
Tlm +351 961 781 029

-----Original Message-----
From: mailscanner-bounces at [mailto:mailscanner-bounces at] On Behalf Of mailscanner-request at
Sent: terça-feira, 12 de Agosto de 2008 12:02
To: mailscanner at
Subject: MailScanner Digest, Vol 32, Issue 12

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