- Server operating system version
- Ubuntu 22.04.5 LTS, Ubuntu 20.04.6 LTS, CentOS Linux 7.9.2009
- Plesk version and microupdate number
- 18.0.70 #1
After updating to Plesk 18.0.70 Update 1, it is no longer possible to activate DKIM for newly added domains. The default DKIM selector (Plesk default) is not supported, and creating a new selector is also not possible. This behavior has been confirmed on Ubuntu 22.04.5 LTS, Ubuntu 20.04.6 LTS, and CentOS Linux 7.9.2009.

