POP3 DoS attacks and mailanyone.net?
WJohnston at induscorp.com
Tue Sep 1 19:58:42 UTC 2009
Issues with gmail.com
here in DC
From: up at 3.am [up at 3.am]
Sent: Tuesday, September 01, 2009 3:28 PM
To: nanog at nanog.org
Subject: POP3 DoS attacks and mailanyone.net?
For the first time since I can remember, my POP3 server was effectively
shut down by too many simultaneous connections today. The first fix I
tried was to raise the number of connections from the default 40 to 100,
but the problem soon returned.
I finally ipfw'd off the offending IP (22.214.171.124 for anyone
interested), then went to look for other possible offenders in the log. I
noticed several thousand connections today to a few dozen former users
from 4 IPs from 126.96.36.199/21. One of the users was actually
These IPs belong to mailanyone.net. The tech contact in their ARIN record
is listed as:
OrgTechName: Heitman, Bryan
OrgTechEmail: hostmaster at mailanyone.net
However, that phone number goes to a UPS store that has no idea what I'm
talking about. I then dialed their suppseod NOC number:
Comment: FuseMail, LLC Network Operations Center contact
Comment: 877.888.3873 x3
I am on hold with that number right now with some very loud and annoying
Can anyone offer any insight as to these people and how/who to deal with
Would a provider be amiss to just block their entire /21?
James Smallacombe PlantageNet, Inc. CEO and Janitor
up at 3.am http://3.am
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