Upgrades Available for Exchange and SharePoint PowerShell Modules
https://techcommunity.microsoft.com/t5/exchange-team-blog/reply-all-storm-protection-in-exchange-online/ba-p/1369811
Stop Users Autoforwarding Email from OWA
https://techcommunity.microsoft.com/t5/exchange-team-blog/announcing-oauth-2-0-support-for-imap-and-smtp-auth-protocols-in/ba-p/1330432
Stopping Users Updating OWA Autosignatures
Managing emails as records in Office 365
https://sid-500.com/2020/04/04/microsoft-365-show-mailboxes-that-have-auto-reply-enabled/amp/
Purging Unwanted Messages from Exchange Online Mailboxes
Reporting Exchange Online Mailbox Permissions
Why Basic Authentication for Exchange Online is So Bad
Time Running Out for Exchange Online Basic Authentication
https://techcommunity.microsoft.com/t5/exchange-team-blog/basic-auth-and-exchange-online-february-2020-update/ba-p/1191282
https://docs.microsoft.com/en-us/exchange/mailbox-migration/what-to-know-about-a-cutover-migration
Controlling how Exchange Online Creates Calendar Events from Email
Export Non-owner Mailbox Access Report to CSV