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I setup dkim record using following tutorial.

But when I check the mx records using googleapps toolbox and dkimcore cheking tool it gives error

google says dkim is not setup, dkimcore says A public-key (p=) is required

All my configuration is same with above document, only different I change my domain name with example.com.

Only different that I see when the guy who write document, when he say sudo opendkim-genkey -s mail -d example.com it returns

"v=DKIM1; k=rsa; p=key"

But when run the exact command it gives me this.

"v=DKIM1; h=sha256; k=rsa" "-p=key" "andAnotherKey"

What may cause this difference ? And how to I solve or how to use ?

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I got the exact same issue when i configured DKIM for my server, and from what I remember, you had to generate a DKIM record manually from this command and get a result like :

"v=DKIM1; h=sha256; k=rsa; p=<key><andAnotherKey>"

Example for my own server, i got this result from the command :

mail._domainkey IN      TXT     ( "v=DKIM1; h=sha256; k=rsa; "
      "p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4j5eGBPD/BvRQS+kn0WciLGXy1qc/BxQRuE//PSo5JlrvwhNDijBh/ug0T19oyVsGrKuYVd1CuITiVAA5LS80XblcMVrbEWd8cFX1QRpn6zv76BzGW3gTrDs13UMTW3njf3wYWHzY2rWgaiF8GHRr2mqjUQUsqkrYrol7LXrlI1+IvdP/fGUjCYM1wNRJUH0qWMHypSQ6j2Xii"
      "2Ldmb74nbnIlBZPsi0t9oEyFTtYYJAQrDmudp3/Jr1wftbAh0R4ezCiyqslyukLjwtDpCNPtSvoQOxbkW5hpMhcFiRWfcs4fRd7wbsvhi4eDOynGVz1+0GX/AXthgQFVKF7n6OVQIDAQAB" )  ; ----- DKIM key mail for redheness.net

and i make this record :

v=DKIM1; h=sha256; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4j5eGBPD/BvRQS+kn0WciLGXy1qc/BxQRuE//PSo5JlrvwhNDijBh/ug0T19oyVsGrKuYVd1CuITiVAA5LS80XblcMVrbEWd8cFX1QRpn6zv76BzGW3gTrDs13UMTW3njf3wYWHzY2rWgaiF8GHRr2mqjUQUsqkrYrol7LXrlI1+IvdP/fGUjCYM1wNRJUH0qWMHypSQ6j2Xii2Ldmb74nbnIlBZPsi0t9oEyFTtYYJAQrDmudp3/Jr1wftbAh0R4ezCiyqslyukLjwtDpCNPtSvoQOxbkW5hpMhcFiRWfcs4fRd7wbsvhi4eDOynGVz1+0GX/AXthgQFVKF7n6OVQIDAQAB
                                                                                                                                                                                                                                                                                      ^
                                                                                                                                                                                                                                                                              Start of second key

I can clearly not identify the source of this error and why this command now return this result.

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  • Hi redheness, thank you for your reply, may i ask something ? should I change mail.txt or I need to change just dns records ? Mar 6 '19 at 13:37
  • Only DNS record
    – redheness
    Mar 6 '19 at 13:38

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