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Re: Blocking mail from=<>
From: /dev/rob0 (rob0
gmx.co.uk)
Date: Sun Feb 27 2005 - 10:16:08 CST
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On Saturday 26 February 2005 23:37, Forrest Aldrich wrote:
> However, I see tons of probes to our gateway from various places such
> as AOL, Verizon,
Speak not ill of AOL! AOL are the Good Guys. They are the biggest,
whitest hat ISP in terms of fighting email abuse. I think you are
incorrect. I have users who correspond with aol.com, and no such
probes occur here.
Verizon, sure. They're terrible. Speak ill, at will. :)
> and the like that submit FROM <> and to
> SomeRandomWord. I've not figured out WHY this is happening, it's
> relatively benign in most cases.
Sender address verification, most likely, like the Postfix verify(8)
server. Verizon DOES do this. General consensus on SPAM-L, as noted in
ADDRESS_VERIFICATION_README.html#limitations, is that verification
probes are a form of abuse.
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