Domainkeys Identified Mail Dkim Signatures
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Domainkeys identified mail dkim signatures. Dkim domain keys identified mail is an email authentication technique that allows the receiver to check that an email was indeed sent and authorized by the owner of that domain. Domainkeys identified mail dkim defines a domain level authentication framework for email using public key cryptography and key server technology to permit verification of the source and contents of messages by either mail transfer agents mtas or mail user. Allman request for comments. Domainkeys identified mail dkim permits a person role or organization that owns the signing domain to claim some responsibility for a message by associating the domain with the message.
Obsoleted by draft ietf dkim rfc4871bis draft ietf dkim rfc4871bis network working group e. Domainkeys identified mail dkim permits a person role or organization that owns the signing domain to claim some responsibility for a message by associating the domain with the message. The organization is a handler of the message either as its originator or as an intermediary. This article describes how you use domainkeys identified mail dkim with microsoft 365 to ensure that destination email systems trust messages sent outbound from your custom domain.
You should use dkim in addition to spf and dmarc to help prevent spoofers from sending messages that look like they are coming from your domain. This can be an author s organization an operational relay or one of. A sender creates the dkim by signing the email with a digital signature. Domainkeys identified mail dkim allows senders to associate a domain name with an email message thus vouching for its authenticity.
This signature is located in the message s header. This can be an author s organization an operational relay or one of their. Domainkeys identified mail dkim signatures rfc 4871 may 2007. Dkim allows the receiver to check that an email claimed to have come from a specific domain was indeed authorized by the owner of that domain 1 it.
This dkim signature is a header that is added to the message and is secured with encryption. This is done by giving the email a digital signature.