With the help of DKIM, the recipient of the letter can identify the sender and make sure it is an authentic letter from that sender. DKIM employs a mechanism that allows using RSA keys to sign and verify Email messages. For its implementation two keys are required: a private and a public one. The private key is used to sign the Email message. And the public key, stored in a DNS domain record, is used by the recipient's server for identity verification.
To generate DKIM keys, enter your domain, domain selector and the key size in the field below. The domain selector allows using several DKIM records for the same domain and can consist of an arbitrary set of Latin letters and numbers.