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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

4 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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