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

["D. Ryan Spott" <rspott () irongoat net>]

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