MailScanner gateway system

[Damian Mendoza]

Put the sendmail server on the Internet side with it's own public IP
address which your MX record will reference. Highly recommend using the
Linux/Unix Firewall software.

The sendmail server will forward messages to the existing SMTP IP
address after scanning for viruses and spam. The POP3 users will
continue using the existing IP address.

Regards,

Damian Mendoza
SpamGate - http://www.spamgate.us

 

-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
Behalf Of Dennis Willson
Sent: Tuesday, September 06, 2005 3:32 PM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: MailScanner gateway system

Do you have a VPN server? Your users could VPN into your network and
then directly use Exchange. That's what our users do.

Eric Sandquist wrote:
> I am trying to get mailScanner setup using sendmail to relay all 
> incoming traffic to our exchange server.  I have all traffic coming
into 
> the MailScanner box with Sendmail for the MTA.  But sendmail blocks
our 
> remote pop3 users from sending email outside the company.  I need 
> sendmail to collect all email, scan it with 
> MailScanner/SpamAssassin/ClamAv, then pass it on to the exchange
server, 
> but our remote users need to authenticate in some way - either to 
> sendmail with some kind of a lookup to AD in exchange or the remote 
> users need to send email directly to the exchange server.  The problem

> is that both the sendmail system and the exchange system are behind a 
> firewall and the fire wall can only be portmapped to one of them.
> 
>  
> 
> eric
> 
> 
>
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