On a related note, I'm in the process of setting up mail for our new
domain, and Office365 was one of the options.
I was surprised to see that Office 365 hosted domains have only one
MX, which resolves to only two IPv4 addresses:
visser@cajones:~$ host geant-org.mail.protection.outlook.com.
Thanks, Dick and Franck, that URL has some great information.
I'm 99% sure that neither Office365 customer turned IPv6 on and off, especially
in the same afternoon (that MSDN blog entry notes that the customer has to
specifically request it), so I'm guessing that something happened at MSFT that
On Nov 26, 2014, at 6:00 PM, Frank Bulk frnk...@iname.com wrote:
This afternoon I saw several log messages in our email server's logs in
relation to emails our local business customer (who uses our ISP email
server) was trying to send to a Microsoft Office 365 hosted domain: