campbell at CNPAPERS.COM
Wed Jan 21 21:23:06 GMT 2004
It sounds to me that you are risking a little security here by letting spam
bypass a server to be blocked by another. My sendmail server has enough to
do, so I try and block everything at the firewall.
If I'm not mistaken, and you are running RedHat on these inside servers, I
believe sendmail is installed by default unless you say not, and these can
be their own MTA without using the gateway. You only need to allow outbound
SMTP through your firewall for this and block inbound SMTP (as long as the
return address is located on your mail server).
I think this would work and perhaps save you a lot of grief.
campbell at cnpapers.com
----- Original Message -----
From: "Marco Obaid" <marco at MUW.EDU>
To: <MAILSCANNER at JISCMAIL.AC.UK>
Sent: Wednesday, January 21, 2004 3:29 PM
Subject: Re: OT:Sendmail Help
> Quoting Peter Bonivart <peter at UCGBOOK.COM>:
> > Shouldn't you use your firewall for that?
> I could, but I know there is a way in Sendmail to do this.
> Also I have internal servers on site that I do not want to establish
> smtp connections with my main mail server.
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