Re: IPv6 addresses for Microsoft Office 365 hosted domains?

2014-11-27 Thread Dick Visser
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.

RE: IPv6 addresses for Microsoft Office 365 hosted domains?

2014-11-27 Thread Frank Bulk
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

Re: [mailop] IPv6 addresses for Microsoft Office 365 hosted domains?

2014-11-27 Thread Franck Martin
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: