By now you must have heard that Microsoft is moving away from basic authentication and that all...
M365 - Exchange Online Center
ENow Software's Microsoft Exchange Online blog built by Microsoft MVPs for IT/Sys Admins.
Jaap is a Microsoft MVP for Office Apps and Services. Jaap is an independent consultant, primarily focusing on Exchange server, Skype for Business and Office 365.
Reply All Storm Protection in Exchange Online
Twenty-five years (!) ago I was working for Microsoft. One morning we got this message with a subject line “Why am I on this mailing list? Please remove me from it.” From someone, followed by an email saying “Me Too!”, and another one with “Me Too!” and another one, and another one, followed by email with “People stop with the replay” multiple times. Before we knew it, the Exchange environment was brought to a standstill because of the enormous amount of email sent via this Distribution Group and nobody was able to send email anymore. It took a couple of days before the Microsoft internal IT staff had fixed this.
October 13, 2020, is an important date for Microsoft for a variety of reasons. On this date, Microsoft will stop support for their 2010 suite of products like Exchange 2010, SharePoint 2010, Office 2010, etc. In addition, Microsoft will stop basic authentication in Office 365 as outlined in their post Upcoming changes to Exchange Web Services (EWS) API for Office 365 and their follow-up post Basic Auth and Exchange Online – February 2020 Update.
Years ago, you moved successfully from Exchange 2003 to Exchange 2010 and to be honest, you’re still very satisfied with it. Update rollups appear frequently and your Office 2010 still functions properly, so everybody is happy. But all good things come to an end, and as such January 14, 2020 is an important date. Why? Because it’s the end data for extended support for Exchange 2010 and with all the social networking on this topic you shouldn’t have missed it….