Hellow, I reinstalled my server with Debian 10 using the Perfect Server tutorial excluding the installation of clamav and disabled it in amavis with "@bypass_virus_checks_maps = (1);", everythink its ok. When I send mail by the SMTP (installed Mautic or external software), DKIM is signing, but using php, sendmail or mutt, DKIM not signing email. I checked amavis and postfix configs and logs and dont found the problem. Anyone can help? Thanks!