outlook.com outgoing blacklists?

Wed Sep 9 18:24:37 UTC 2015

DNS has been confirmed to be valid.

-----Original Message----- 
From: Valdis.Kletnieks at vt.edu
Sent: Wednesday, September 9, 2015 1:22 PM
To: Todd K Grand
Cc: nanog at nanog.org
Subject: Re: outlook.com outgoing blacklists?
>On Wed, 09 Sep 2015 11:49:30 -0500, "Todd K Grand" said:
>
>> This happens without ever sending a packet to our servers.
>> The affected domain can send emails to hotmail/outlook accounts just 
>> fine.
>
>Step 0:  Verify that the DNS has the appropriate MX, A, and other records
>for the failing domain. 