[Mimedefang] Mail exchangers at roaringpenguin.com

[Matthew.van.Eerde at hbinc.com]

www.roaringpenguin.com is 216.191.236.23, *not* 209.195.84.23

Whoever is using 209.195.84.23 is maliciously claiming to be
www.roaringpenguin.com and has set maliciously set their reverse DNS for
23.84.195.209.in-addr.arpa to be roaringpenguin.com

I could just as easily do the same for any of my IP's, but such practice is
frowned upon

We currently have remote users - we have configured most of them to send via
our mail server, using SMTP Authentication.  There is one, though, whose ISP
blocks all outbound traffic on port 25 - he is configured to use his ISP's
mail server (no authentication)

He is in the situation of
his-mail-server-IP-has-nothing-to-do-with-his-destination, but not
everything he sends is spam. ;)

I had thought of a workaround of running an authenticated-SMTP server on a
nonstandard port - say 2525 - and using that to get around the port-25
block, but currently using the ISP's mail server is working quite well.

> -----Original Message-----
> From: -ray [mailto:ray at ops.selu.edu]
> Sent: Wednesday, November 19, 2003 3:58 PM
> To: mimedefang at lists.roaringpenguin.com
> Subject: Re: [Mimedefang] Mail exchangers at roaringpenguin.com
> 
> 
> On Wed, 19 Nov 2003, Mark wrote:
> 
> > Received: from www.roaringpenguin.com (roaringpenguin.com 
> [209.195.84.23])
> > 
> > And I still cannot find 209.195.84.23 being listed anywhere 
> as MX record for
> > roaringpenguin.com.
> 
> I may be off base, but MX records are only needed for incoming mail.  
> Outgoing mail can be sent from anywhere, so outgoing smtp 
> servers don't 
> need MX records.
> 
> This is a major source of spam... spam coming from IP's that 
> have nothing 
> to do with the domain of the sender.  Hopefully, something 
> like RMX can 
> fix this.
> 
> ray
> -- 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> Ray DeJean  				       	 http://www.r-a-y.org
> Systems Engineer                    Southeastern Louisiana University
> IBM Certified Specialist  	      AIX Administration, AIX Support
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> 
> 
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