RE: Hotmail blackholing certain IP ranges ?

["Gabriel Kuri" <gkuri () csupomona edu>]

I've had the same issue with hotmail when email originates from
208.127.57.0/24. any mail sent from a server within that netblock is
properly accepted by hotmail, given a queue id, but disappears and is
never delivered.

if anyone from hotmail has a clue as to what's going on, it would be
appreciated.

thanks much ...

-----
Gabriel Kuri | Sr. Network Analyst 
Instructional and Information Technology Division  
California State Polytechnic University, Pomona 
http://www.csupomona.edu/~iit | +1 909 979 6363   

> -----Original Message-----
> From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On 
> Behalf Of Jeroen Wunnink
> Sent: Wednesday, April 25, 2007 11:22 AM
> To: nanog () merit edu
> Subject: Hotmail blackholing certain IP ranges ?
>
>
> Does anyone have a clue why hotmail is appearantly blocking 
> certain IP ranges ?
>
> I provided a new server for a customer in his own IP subnet which is 
> a part of a /20 we announce, but for some reason all mail sent to 
> @hotmail.com addresses disappears.
>
> He has another server in a /24 we announce which is still part of 
> another network and that works like a charm.
>
> None of our subnets are blacklisted in any spamfilter I can find, so 
> i'm a bit puzzeled on what's up here.
>
> If any hotmail netadmin is reading this list, can you please check if 
> 81.26.212.0/26 is blocked in any way (It's part of 81.26.208.0/20 
> originating from AS39556)
>
> According to the mailserver logs all the mail is properly accepted by 
> the hotmail relays, never to be seen again after that.
>
>
>
> Met vriendelijke groet,
>
> Jeroen Wunnink,
> EasyHosting B.V. Systeembeheerder
> systeembeheer () easyhosting nl
>
> telefoon:+31 (035) 6285455              Postbus 48
> fax: +31 (035) 6838242                  3755 ZG Eemnes
>
> http://www.easyhosting.nl
> http://www.easycolocate.nl