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 signature, 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.

How to Configure DKIM for Apptoto?

You should configure DKIM authentication for your domains, according to Apptoto. When utilizing Apptoto to send emails on your behalf, you can sign them with a DKIM key. Here’s how:

• Email Apptoto customer assistance.
• Submit a request on Apptoto to enable DKIM for your unique domain.
• The DKIM key pair for your domain will then be generated and provided to you by Apptoto.
• Your DNS should publish the DKIM public key, and Apptoto will utilize the private key to sign your outgoing emails during mail transfer.

Use our free DKIM record lookup tool to validate the published DKIM record.

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