Terry Zink at Microsoft posted earlier this week that Office365/Exchange Online Protection will have a significant change this week. Office365 uses Exchange Online Protection (EOP) for spam filtering and email protection. One of the requirements to send to EOP over IPv6 is to have the email authenticated with either SPF or DKIM. If the mail sent to Office365/EOP over IPv6 is not authenticated...
April 24, 2015
Office365/EOP IPv6 changes starting today
24April