[77726] in North American Network Operators' Group
Re: Time to check the rate limits on your mail servers
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Thu Feb 3 12:27:40 2005
To: Jason Frisvold <xenophage0@gmail.com>
Cc: Gadi Evron <ge@linuxbox.org>,
=?ISO-8859-1?Q?J=F8rgen_Hovland?= <jorgen@hovland.cx>,
nanog@merit.edu
In-Reply-To: Your message of "Thu, 03 Feb 2005 12:16:41 EST."
<924f2928050203091669ec325b@mail.gmail.com>
From: Valdis.Kletnieks@vt.edu
Date: Thu, 03 Feb 2005 12:26:55 -0500
Errors-To: owner-nanog-outgoing@merit.edu
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On Thu, 03 Feb 2005 12:16:41 EST, Jason Frisvold said:
> Agreed. And depending on your service, there are different ports
> worth blocking. For residential users, I can't see a reason to not
> block something like Netbios. And blocking port 25 effectively
> prevents zombies from spamming. Unfortunately, it also blocks
> legitimate users from being able to use SMTP AUTH on a remote server..
There's a *reason* why RFC2476 specifies port 587....
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