Third Party Email Senders DKIM Instructions

How to Set Up DKIM for IRIS CRM?

October 11, 2023 | < 1 min read

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Generate DKIM Record

Enter domain

Selector Give the selector a name you want. e.g s1

Key Length Select the length of the DKIM key (1024bit, 2048bit or 4096bit)

Generated DKIM Record

Private Key

You must enter the private key in your DKIM signer. It must be kept secret, as anyone with access to it can stamp tokens pretending to be you

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Public Key

The public key is the original raw 'X509' format. It's not usable in DNS directly, but it might be useful for something else.

Subdomain

Publish the generated record text on this DNS host. Format: [selector]._domainkey.[yourdomain.com] — never use @ in DNS records.

Preparing your DKIM records…

DKIM works by adding a digital signature to outgoing email messages. This signature can be verified by the receiving email server, which can then determine whether or not the message has been tampered with during transit. In order for DKIM to work, the sending email server must generate a cryptographic key pair, which consists of a private key and a public key. The private key is used to sign outgoing email messages, while the public key is published in the Domain Name System (DNS). When an email message is signed with DKIM, the signature is added as a header to the message. The receiving email server can then use the public key to verify the signature and confirm that the message has not been altered.