nanog mailing list archives
Re: Hotmail blackholing certain IP ranges ?
From: Chris Edwards <chris () eng gla ac uk>
Date: Wed, 25 Apr 2007 22:43:14 +0100 (BST)
Some sites have recently reported problems mailing hotmail due to inability to resolve the hotmail MX records. This appears to be due to the hotmail DNS servers now blackholing DNS queries where the UDP source port was < 1024. I can reproduce this here and now, but don't know if it's new. Chris -- Chris Edwards, Glasgow University Computing Service
Current thread:
- Hotmail blackholing certain IP ranges ? Jeroen Wunnink (Apr 25)
- RE: Hotmail blackholing certain IP ranges ? Stasiniewicz, Adam (Apr 25)
- RE: Hotmail blackholing certain IP ranges ? Gabriel Kuri (Apr 25)
- <Possible follow-ups>
- Re: Hotmail blackholing certain IP ranges ? Richard P. Welty (Apr 25)
- Re: Hotmail blackholing certain IP ranges ? Al Iverson (Apr 25)
- Re: Hotmail blackholing certain IP ranges ? Chris Edwards (Apr 25)
- RE: Hotmail blackholing certain IP ranges ? Leigh Porter (Apr 25)
- Re: Hotmail blackholing certain IP ranges ? Simon Waters (Apr 26)
- Re: Hotmail blackholing certain IP ranges ? Leigh Porter (Apr 26)
- Re: Hotmail blackholing certain IP ranges ? Jeroen Wunnink (Apr 26)
- RE: Hotmail blackholing certain IP ranges ? Stasiniewicz, Adam (Apr 26)
- Re: Hotmail blackholing certain IP ranges ? Al Iverson (Apr 26)
- RE: Hotmail blackholing certain IP ranges ? Leigh Porter (Apr 25)
- Re: Hotmail blackholing certain IP ranges ? Owen DeLong (Apr 26)
- Re: Hotmail blackholing certain IP ranges ? Leigh Porter (Apr 26)