nanog mailing list archives
Microsoft/Hotmail forgot to set reverse DNS pointers?
From: Michiel Klaver <michiel () klaver it>
Date: Wed, 21 Mar 2012 09:54:52 +0100
Today I received some notices about Hotmail users who couldn't send e-mail messages to various receipients due to spamfilters blocking them at the receiving mailservers. Seems like Microsoft/Hotmail staff forgot to set some reverse DNS pointer records: Diagnostic-Code: smtp;450 4.7.1 Client host rejected: cannot find your reverse hostname, [157.55.1.150] (Verified this using various public DNS servers, to exclude potential local issues) Anyone here who has proper contacts to give them the clue-bat? -- Michiel Klaver IT Professional
Current thread:
- Microsoft/Hotmail forgot to set reverse DNS pointers? Michiel Klaver (Mar 21)
- RE: Microsoft/Hotmail forgot to set reverse DNS pointers? Jason Gurtz (Mar 21)
- Re: RE: Microsoft/Hotmail forgot to set reverse DNS pointers? Michiel Klaver (Mar 21)
- Re: Microsoft/Hotmail forgot to set reverse DNS pointers? D. Ryan Spott (Mar 21)
- Re: Microsoft/Hotmail forgot to set reverse DNS pointers? Michael J Wise (Mar 21)
- Re: Microsoft/Hotmail forgot to set reverse DNS pointers? Suresh Ramasubramanian (Mar 21)
- <Possible follow-ups>
- Re: Microsoft/Hotmail forgot to set reverse DNS pointers? Jason Gurtz (Mar 21)
- RE: Microsoft/Hotmail forgot to set reverse DNS pointers? Jason Gurtz (Mar 21)