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

Kuzma Ivanov

Updated January 17, 2024 17:57

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

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

Connect to a Plesk server via SSH.
Allow signing outgoing mail by DKIM spam protection on a server level:

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

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