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How to enable/disable DKIM signing for all domains in Plesk for Linux

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Kuzma Ivanov
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Plesk for Linux kb: how-to ABT: Group B

Applicable to:

  • Plesk for Linux

Question

How to enable/disable DKIM signing for all domains in Plesk for Linux?

Answer

  1. Connect to a Plesk server via SSH.

  2. Allow signing outgoing mail by DKIM spam protection on a server level:

    # plesk bin mailserver --sign-outgoing-mail true

  3. Run the following command to enable DKIM signing for all domains:

    # for domain in $(plesk db -Ne 'SELECT name FROM domains WHERE parentDomainId=0;'); do plesk bin domain_pref --update $domain -sign_outgoing_mail true; done

    Note: To disable DKIM signing for all domains, switch the value to from true to false.

 

Additional Information

To learn more about mail protection, see this KB article.

Comments

5 comments

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  • Avatar
    Fouad Ahmed Fouad

    Thanks, this solved it in no time!

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  • Avatar
    Vojkan Cvijanovic (Edited )

    3. Run the following command to enable DKIM signing for all domains:

    for domain in $(plesk db -Ne 'SELECT name FROM domains WHERE parentDomainId=0;'); do plesk bin domain_pref --update $domain -sign_outgoing_mail true; done

    This didn't work for me on CentOS 7 + Plesk 18.

    I get:
    -bash: syntax error near unexpected token `do'

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  • Avatar
    Renan Genova Ferreira

    Hi, Vojkan Cvijanovic!

    The command should work there - please make sure you run it as root and that no extra characters are copied over.

    Thanks

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    Emilio Ortiz

    If you have problems validanting DKIM records first disable all (false) and after enabled all (true).

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  • Avatar
    Senaka

    I have executed the 3rd command with "false" and then run again with "true". But gmail saying my server domain email's DKIM is "FAIL". How to fix it please? Can we regenerate new Key domain domains?

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