Only allow mail from 1 server

[Chris Stone]

I have this setup using qmail on the primary servers with qmail-spp patch
and a script (plugin through qmail-spp) to check the sending mail server and
if the connection if from an SMTP AUTH connection - works quite well and
keeps the spammers and viruses from doing an 'end-around' the filtering
servers running MailScanner.


-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf
Of Julian Field
Sent: Wednesday, December 01, 2004 5:45 AM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: Only allow mail from 1 server

No, not as far as I know. You need a firewall to protect it. If it's a
Linux box then this is easy using IPtables (but don't ask me how).

Paul Houselander - SME wrote:

> Hi
>
> I have a machine running Mailscanner/Sendmail where users also pop
> there mail off.
>
> I want to move MailScanner to a couple of machines that scan the mail
> then forward onto the box where the users actually pop there mail off.
>
> Ill get rid of the current MX record for the POP machine and create MX
> records for the 2 MailScanner Machines. I want to ensure the POP
> machine can only recieve mail from the 2 front end MailScanner
> Machines. I guess I can use a firewall to only allowing incomming
> connections from the 2 machines but is there a way you can achieve
> this within sendmail?
>

--

--
Julian Field
www.MailScanner.info
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