[TriLUG] Domains blocking dynamic IPs

[rasch at raschnet.com]

On Mon, Sep 15, 2003 at 02:37:58PM -0400, Michael Thompson <thompson at easternrad.com> wrote:
> Hey guys, just wondering...  whats wrong with relaying all of your mail
> through your isp's smtp server and avoiding the hassle of keeping lists
> of 'unfriendly' mail servers altogether?  If its for security purposes,
> can't your isp sniff out your unencrypted messages as they are
> coming/going anyway if they cared that much?
> 


This is exactly what I do.  I had enough trouble with me, and my users,
reporting email servers bouncing their mail that I now relay everything
through mail.earthlink.net and it goes through no problems.  I've had no
problem with up-time or reliability of this solution.  If performance is
a problem, you could add explicit routes for known-good hosts rather
than bad ones.  Personally, I think that bouncing mail based on black
lists and dynamic IP lists is stupid and really destroys the paradigm.
Particularly when an IP on one of these lists is basically irrefutable.
It's been particularly irritating to me, who operates a closed-relay
mail server on a dynamic IP.  

Just my $0.02

-David
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