Security News > 2024 > February > Microsoft: Outlook clients not syncing over Exchange ActiveSync
![Microsoft: Outlook clients not syncing over Exchange ActiveSync](/static/build/img/news/microsoft-outlook-clients-not-syncing-over-exchange-activesync-medium.jpg)
Microsoft warned Outlook for Microsoft 365 users that clients might have issues connecting to email servers via Exchange ActiveSync after a January update.
"After updating to Version 2401 Build 17231.20182 Outlook stops connecting when using the Exchange ActiveSync protocol," Microsoft said.
Until this EAS syncing issue is resolved, Microsoft provides a temporary fix for affected users to revive their Outlook desktop clients.
In December, Microsoft addressed two other bugs, one behind email sending issues for users with lots of folders and one causing Outlook to crash when sending emails from Outlook.com accounts.
News URL
Related news
- Microsoft fixes RCE vulnerabilities in MSMQ, Outlook (CVE-2024-30080, CVE-2024-30103) (source)
- Microsoft bigwig says the Feds catching Chinese spies in Exchange Online is the cloud working as intended (source)
- Microsoft: New Outlook security changes coming to personal accounts (source)
- Microsoft finally fixes Outlook alerts bug caused by December updates (source)