Article ID: 126875, created on Sep 13, 2015, last review on Oct 13, 2016

  • Applies to:
  • Plesk 12.5 for Linux
  • Plesk 12.0 for Linux
  • Plesk 11.5 for Linux


DomainKey signing isn't working. DKIM support is also installed and configured.


DKIM and DomainKeys interoperability conflict occurred because of both DKIM and DomainKeys were configured to use the same default selector, but crypto keys for these two systems are differ.


Changes should be made on DKIM side.

  1. Change DKIM selector from default to something else, for example, mail in opendkim.conf
  2. Add corresponding TXT record (mail._domainkey.domain.tld.) in Plesk for domain.tld from /etc/opendkim/keys/domain.tld/mail.txt.
  3. Wait for 'Propagation period'

Note: DKIM is not supported in Plesk 12.5 and earlier. DKIM support in Plesk announced since Plesk Onyx. Implementation details available here

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DKIM record Plesk

DomainKeys enabled but check reports as failed



a914db3fdc7a53ddcfd1b2db8f5a1b9c 56797cefb1efc9130f7c48a7d1db0f0c 29d1e90fd304f01e6420fbe60f66f838 01bc4c8cf5b7f01f815a7ada004154a2 0a53c5a9ca65a74d37ef5c5eaeb55d7f 2a5151f57629129e26ff206d171fbb5f e335d9adf7edffca6a8af8039031a4c7 742559b1631652fadd74764ae8be475e

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