DKIM

DKIM – Domain Keys Identified Mail

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Azure Communication Service Email – MX Record Required

Posted on by Rhoderick Milne [MSFT]
Azure Communication Service Email - MX Required

Azure Communication Services (ACS) can be used to send high volume outbound email to Internet recipients, represents an important shift in Microsoft’s messaging architecture. As organizations modernised their cloud communications to Exchange Online (EXO) many of them just kept doing what they were doing with Exchange on-premises, i.e. using that as a bulk mailer to send out high volume email inter… Read the rest “Azure Communication Service Email – MX Record Required”

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How to Use NsLookup To Check DKIM Record

Posted on by Rhoderick Milne [MSFT]
Check DMARC DNS Record Using NSLookUP

There are a multitude of online tools that help diagnose issues with various mail services, but understanding what these tools actually check is valuable.  One example is around manually checking published DomainKeys Identified Mail (DKIM) records.  DKIM is described in RFC 4871.  As an interesting piece of history DKIM went through a previous iteration "Domain-Based Email Authentication Using Pub… Read the rest “How to Use NsLookup To Check DKIM Record”