Stop outgoing spam checks

Alex Neuman alex at nkpanama.com
Sat Jul 31 18:57:59 IST 2004


That's why I don't do it everywhere. People who want to send e-mail out at
my clients' networks either have to ask specifically for permission or use a
VPN.

-----Original Message-----
From: Curtis Maurand [mailto:cmaurand at xyonet.com]
Sent: Monday, March 10, 2003 5:38 PM
To: alex at nkpanama.com
Subject: Re: Stop outgoing spam checks


However, that breaks smtp for people that might be on your system doing
smtp auth somewhere else.

Curtis

Alex Neuman wrote:

>I would suggest using mandatory SMTP AUTH everywhere. I do that with my
>customers, and no complaints - plus smtp-sending viruses can't use the
>server to send stuff out, specially if you use iptables to redirect port 25
>traffic to your local server.
>
>-----Original Message-----
>From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
Behalf
>Of Mariano Absatz
>Sent: Friday, July 30, 2004 3:48 PM
>To: MAILSCANNER at JISCMAIL.AC.UK
>Subject: Re: Stop outgoing spam checks
>
>On Fri, 30 Jul 2004 16:40:51 -0400, Brendan Chard <chardlist at chard.net>
>wrote:
>
>
>>How can I prevent mail that is being sent out through my server from being
>>checked for spam?  One of my clients has falsely shown up in the SBL XBL
>>lists and my MS installation is tagging all of their outbound mail as
>>
>>
>spam.
>
>
>>Outbound virus checking is sufficient for my needs.
>>
>>I'm running MS on FreeBSD with multiple virtual hosts.
>>
>>
>>
>Well the clasical answer is 'use a ruleset to identify the networks
>from where your customers send mail'.
>
>Since I can't do this, 'cause I don't know where my users are, I use 2
>different instances of the MTA listening on different IPs (even if in
>the same network interface)... one of them only for incoming mails
>(the IP you put in your customers' MX records) and the other for my
>customers to send mail (I usually call this IP
>smtp.mycustomerdomain.com)... what's more, in this later instance, I
>make SMTP AUTH mandatory.
>
>HTH
>
>--
>Mariano Absatz - El Baby
>el (dot) baby (AT) gmail (dot) com
>el (punto) baby (ARROBA:@) gmail (punto) com
>
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>

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