==== Required information ====
- iRedMail version (check /etc/iredmail-release): 9.6
- Linux/BSD distribution name and version: 16.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): ldap
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? NO
- Related log if you're reporting an issue:
====

hello i try with http://dkimvalidator.com

and it is ok for dkim and spf but spam assasin

SpamAssassin Score: 0.11
Message is NOT marked as spam
Points breakdown:
0.1 DKIM_SIGNED            Message has a DKIM or DK signature, not necessarily valid
0.0 T_DKIM_INVALID         DKIM-Signature header exists but is not valid

is there a way to correct it ?

root@mail:/var/log# amavisd-new testkeys
TESTING#1 XXX.YY: dkim._domainkey.XXX.YY => pass