In August of 2020 I reached out to Martin Kniffin for guidance and he didn't fail to impress, providing me and a handful of colleagues excellent context. Coupled with Microsoft's hyper focus on GRAPH APIs, in a bad mood, with your eyes squinted, it seemed possible ActiveSync could be going away. Making it somewhat believable was that ActiveSync hasn't been worked on for years now, with the latest version of 16.1 released in 2016. The rumor went something like this: ActiveSync is getting deprecated which will lead to chaos in MEM everywhere, possibly triggering World War 3.
Of all these OA uth based alternatives Workspace ONE Access is certainly my favorite, so I'll detail the magic that happens when you federate Azure AD with Workspace ONE Access and then introduce certificate based authentication with VMware's proprietary Mobile SSO solution.Ī MEM Misnomer: Rumors Of ActiveSync's Death Are Greatly ExaggeratedĪbout a year and a half ago I started hearing grumblings of impending doom for WS1 customers and Mobile Email Management (MEM) in general. This post begins with a quick overview of the ActiveSync Basic Auth deprecation and why it's relevant, then details the choice between Microsoft's Modern Auth or other OAuth based solutions for addressing the challenge. Further, for existing Exchange Online WS1 customers leveraging Basic Auth there's a clear path forward through the adoption of Modern Authentication or other OAuth based alternatives.
However, it is limited to Exchange Online customers so on-premises Exchange customers, at least for now, need not worry. This news is initially a bit unnerving given that historically a lot of AirWatch/Workspace ONE customers have leveraged Basic Auth within their ActiveSync profiles. As of October 1st, 2022, Microsoft will begin disabling Basic Auth in all tenants, with short-term temporary disruptions for some customers beginning early 2022. After several delays due to Covid-19 Microsoft has finally fixed a date for prohibiting Basic Auth in Exchange Online.
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