TbSync

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wot jan_lichte dnja Měrc 19, 2026 · trajny wotkaz

It seems like this problem is not related to the TB version 140 or 148, but due to a change on Microsoft side, not allowing older versions of EAS than current 16.1 version: https://office365itpros.com/2025/12/16/exchange-activesync-161/

Reading this article, I wonder if EAS is the best approach, it seems like there is a new API called "Outlook Mobile", but not sure if available for Desktop? BR Jan

Quote from above article:
"I don’t understand why Exchange Online users continue to use EAS clients when they can use Outlook Mobile."