Announcing SMTP DANE & MTA STS Connector Modes in Exchange Online | Microsoft Community Hub We wanted to announce SMTP DANE & MTA STS Connector Modes in Exchange Online.  

SMTP DANE & MTA STS Connector Modes allow explicit control over how strictly Exchange Online enforces modern mail flow security standards when sending email over outbound connectors
techcommunity.microsoft.com/blog/exchang...

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Security Related Updates in Exchange Online | Microsoft Community Hub Please read about important updates about recent changes and upcoming deprecations in Exchange Online.  

Check out the latest Security Related updates in Exchange Online - techcommunity.microsoft.com/blog/exchang...

#MSExchange #ExchangeOnline #Security #EWS #AppImpersonation #SMTPDANE #DNSSEC #HVE