Re: Microsoft/Hotmail forgot to set reverse DNS pointers?

Mocalert@Microsoft.com Mention Sev1 in your email. ryan On Mar 21, 2012, at 1:54 AM, Michiel Klaver <michiel@klaver.it> wrote:

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