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How to reject Emails in Office 365 they fail DMARC
EASYDMARC had an interesting blog post about DMARC handling with Microsoft 365. DMARC and Microsoft : What is Happening?https://easydmarc.com/blog/dmarc-and-microsoft/ You...
Set up DomainKeys Identified Mail (DKIM) on Exchange on-premise
Out of the box on-premise Exchange Server doesn’t support DKIM signing. To deploy DKIM for your on-premises Exchange Servers you...
Set up Exchange on-premise to relay outbound Emails to the Internet via Exchange Online Protection (EOP)
If you had an Exchange Hybrid configuration, you can route also outbound email messages from your on-premise mailboxes through Exchange...
Azure AD Connect – Unable to validate credentials due to an unexpected error.
In case you will get the following error message at connecting to Azure AD, there will be a good chance...
Restore deleted Microsoft 365 Hybrid User
If you need to restore a Microsoft 365 hybrid user account which was synced from on-premises Active Directory to Azure...
Renew Edge Subscription in Exchange Server after Cumulative Update
Last weekend I was updating my on-premises Exchange Servers with the new cumulative update and therefore had to renew the...