North American Network Operators Group

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Re: Verizon is easily fooled by spamming zombies (was: Re: Mail Blacklists)

  • From: Patrick W. Gilmore
  • Date: Wed Jun 01 14:05:44 2005

On Jun 1, 2005, at 1:54 PM, Christopher L. Morrow wrote:

Received: from ([])

( is, HELO'd as ''
and VZ still relayed it)
keep in mind I'm just thinking out loud here, but is it possible that
verizon is using someone else for dial access in places? So, perhaps these
are VZ customers doing the proper helo based on their funky mail client?
You might be right.

I couldn't get to, but from my person server (which has no relation to VZ's network):

[email protected]/1:59PM% telnet 25
Connected to
Escape character is '^]'.
220 MailPass SMTP server v1.2.0 - 013105113116JY +PrW ready Wed, 1 Jun 2005 12:59:33 -0500
mail from: [email protected]
250 Sender <[email protected]> OK
rcpt to: [email protected]
530 5.7.1 Relaying not allowed: [email protected]

This is much better than I originally thought.

Still think they should allow sending mail from their network though. :)