From: Frank Bulk (no email)
Date: Tue Apr 25 2006 - 11:30:20 EDT
This posting on broadbandreports.com might add some background to your
From: [mailto:] On Behalf Of
Sent: Monday, April 24, 2006 3:12 PM
Subject: Verizonwireless.com Blacklisted SMTP
What's up with VZW blacklisting a large amount of IP space on their
MXes? I have tried sending mail to verizonwireless.com from several boxes on
Cogent's network to no avail... Is Cogent on the "bad boy list" yet again?
Anyone have a useful contact there? We're not able to correspond with our
sales rep via email and they're losing business. I have contacted some NOC
engineers with no luck...
Connected to mars.verizonwireless.com.
Escape character is '^]'.
554-Your access to the VZW mail systems has been rejected due to the sending
MTA or Network Service Provider's poor reputation / e-mail hygiene on the
554-Please reference the following URL for more information:
554 If you believe that this failure is in error, please contact the
recipient via alternate means.
Connection closed by foreign host.