Microsoft 365 Profile Conversion Tool

Microsoft is planning to retire the Exchange Web Service(EWS) protocol in Exchange Online. This decision affects all companies that use EWS not just MailStore. This makes it necessary to use alternative access to Exchange Online mailboxes going into the future. We provide a conversion tool that will try to help you migrating profiles that rely on EWS and will stop working in the future. The current Microsoft timeline for that can be followed here.

Accessing the conversion tool

When your MailStore Server installation is using such a profile you should see a warning message on your dashboard. Click on that will open the Microsoft 365 Profile Conversion tool.

The Conversion toll will show you an overview of all profiles connected to Microsoft 365. Archiving profiles, exporting profiles and gives you the option to convert those profiles to a version that will be able to be used after EWS has been retired.

The grid will show you profiles divided into three different kinds.

automatic
These profile need a conversion and should be convertible from within this tool. To just check if a conversion creates a usable profile click the 'Test convert' button. It will do a temporary conversion and will test connection on that profile then. When you click 'Convert' a test will be executed also and the profile is saved if successful.
not supported
Those profiles can't be supported anymore when EWS is disabled. Microsoft did not provide alternatives yet with the use of EWS.
- Public Folders access will no longer be supported by Microsoft. Microsoft recommends a migration to Microsoft 365 Groups
- Archive mailboxes or sometimes called In-Place Archives are currently only supported via EWS. A future solution has been hinted by Microsoft. But no actual plan has been released yet. You might want to follow our blog if, when and how that might change.
not needed
Those profiles are either already converted or has been created currently with a EWS replacement solution already. Those profile can be considered safe and are shown here for completeness.