Hello.
I found spf lookup failed in my logs.
Centos 7
SpamAssaissin version: 3.4.0-2.el17.x86_64
Apr 3 13:44:59 kukuniek postfix/qmgr[3797]: B87E886FF3: from=<
[email protected]>, size=2773, nrcpt=1 (queue active)
Apr 3 13:44:59 kukuniek spamd[20048]: spamd: connection from...