The signature is created using a private key associated with the sender's domain name. ![]() We recommend that you use this field only if necessary.Ĭheck Your DKIM Record And Fix Possible IssuesĭKIM (DomainKeys Identified Mail) is an email authentication technology that helps verify the authenticity of an email message and prevent email spoofing.ĭKIM works by adding a digital signature to the header of an outgoing email message. This tag acts like an optional note field for administrators. It's crucial that both sending and receiving servers support this value. This is the key type tag with a default value of "rsa". The sender is responsible for determining each entry in the list. This tag defines the acceptable hash algorithms. Same goes with the unrecognized service types. If the appropriate service type misses, the receiving servers must ignore the tag. ![]() This tag lists record-applicable service types. This tag lists the flags in a colon-separated sequence. ![]() Leaving the value empty deems it invalid. The public key tag is a string of characters generated during DKIM setup. The version tag indicates the version of DKIM, and should always be set on 1.
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