How to disable Legacy Authentication in Microsoft 365

If you want to make your environment more secure, it's recommended to disable Legacy Authentication in Microsoft 365. Check ...
Redmond Magazine

Exchange Online Users Getting Client Authentication and ActiveSync Improvements

Microsoft this week announced a couple of changes coming to organizations that use its Exchange Online e-mail service. One of the changes will add "modern authentication" to a couple of client ...
Ars Technica

Change Exchange ActiveSync internal URL?

I've been having issues with people using Apple Mail to access Exchange (2007) where the client will try to access the Exchange server using the server's internal hostname. Under Server Configuration ...
Bleeping Computer

Microsoft fixes Outlook clients not syncing over Exchange ActiveSync

Microsoft has fixed an issue causing some Microsoft 365 users' Outlook desktop clients to stop connecting to email servers via Exchange ActiveSync. Exchange ActiveSync (EAS) is a synchronization ...
Ars Technica

Exchange ActiveSync not working with new firewall

Our Linux-based IPCOP firewall bit the dust the other day, and I replaced it with a ZyXEL USG 20. Most everything is working except for Exchange 2003 ActiveSync (or whatever Exchange juju allows ...
Bleeping Computer

Microsoft: Outlook clients not syncing over Exchange ActiveSync

Microsoft warned Outlook for Microsoft 365 users that clients might have issues connecting to email servers via Exchange ActiveSync after a January update. Exchange ActiveSync (EAS) is an Exchange ...