<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2900.2873" name=GENERATOR></HEAD>
<BODY>
<DIV dir=ltr align=left><SPAN class=749252915-25042006><FONT face=Arial
color=#0000ff size=2>This posting on broadbandreports.com might add some
background to your issues:</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=749252915-25042006><A
title=http://www.broadbandreports.com/shownews/73818
href="http://www.broadbandreports.com/shownews/73818">http://www.broadbandreports.com/shownews/73818</A></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=749252915-25042006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=749252915-25042006><FONT face=Arial
color=#0000ff size=2>Regards,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=749252915-25042006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=749252915-25042006><FONT face=Arial
color=#0000ff size=2>Frank</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> owner-nanog@merit.edu
[mailto:owner-nanog@merit.edu] <B>On Behalf Of </B>Chris Riling<BR><B>Sent:</B>
Monday, April 24, 2006 3:12 PM<BR><B>To:</B> nanog@merit.edu<BR><B>Subject:</B>
Verizonwireless.com Blacklisted SMTP<BR></FONT><BR></DIV>
<DIV></DIV>Hi,<BR>
<DIV style="DIRECTION: ltr"><BR> What's up with VZW
blacklisting a large amount of IP space on their MXes? I have tried sending mail
to <A onclick="return top.js.OpenExtLink(window,event,this)"
href="http://verizonwireless.com" target=_blank>verizonwireless.com</A> 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... <BR><BR>Trying 162.115.163.69...<BR>Connected to <A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://mars.verizonwireless.com"
target=_blank>mars.verizonwireless.com</A>.<BR>Escape character is '^]'. <BR><A
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://554-venus.verizonwireless.com"
target=_blank>554-venus.verizonwireless.com </A><BR>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
Internet.<BR>554-<BR>554-Please reference the following URL for more
information: <BR>554-<A onclick="return top.js.OpenExtLink(window,event,this)"
href="http://www.senderbase.org/search?searchString="
target=_blank>http://www.senderbase.org/search?searchString=</A><BR>554-<BR>554
If you believe that this failure is in error, please contact the recipient via
alternate means. <BR>Connection closed by foreign
host.<BR><BR><BR>Thanks,<BR></DIV>
<DIV style="DIRECTION: ltr"><SPAN class=sg>Chris<BR></SPAN></DIV></BODY></HTML>