Microsoft/Hotmail forgot to set reverse DNS pointers?

Mailman List Mirror (Read Only)
1

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?

2

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?

noc@microsoft.com will probably understand or at least point you in the
right direction.

~JasonG

3

Yeah, tried that, doesn't work. Same for moc@ and soc@

<noc@microsoft.com>: host mail.messaging.microsoft.com[216.32.181.178] said:
    550 5.4.1 noc@microsoft.com: Recipient address rejected: Access Denied
(in reply to RCPT TO command)

4

Mocalert@Microsoft.com

Mention Sev1 in your email.

ryan

5

I gather the correct eyes are on the problem and it should be resolved soonest.
Thanks for the heads-up.

Aloha,
Michael.

6

Seems fixed

;; ANSWER SECTION:
150.1.55.157.in-addr.arpa. 3600 IN PTR
dub0-omc2-s11.dub0.hotmail.com.

forgetting to set the rDNS was a dub*mis*step I guess ..