Although Sailfish uses ActiveSync (EAS) for Exchange integration, I’d like to be sure, nothing is missed in order for mail and calendar clients on sailfish continue to work after MS decommissions part of EWS APIs:
Upcoming API Deprecations in Exchange Web Services for Exchange Online
There is partially related article on Deprecation of basic authentication.
The short answer is “yes, there is an impact, your email and calendar and contact sync to Exchange will all stop working when MS turn off basic authentication”. Please see the existing postings at
1 Like