efa-project.org

Hi

Getting the following when trying to release blocked mails:

SMTP: Invalid response code received from server (code: 504, response: 5.5.2 : Helo command rejected: need fully-qualified hostname)])

EFA 4.0.4
MailWatch Version: 1.2.16
Operating System Version: CentOS Linux 7 (Core)
Postfix Version: 3.5.9
MailScanner Version: 5.4.1
ClamAV Version: 0.103.2
SpamAssassin Version: 3.4.4
PHP Version: 7.4.19
MySQL Version: 10.1.41-MariaDB

Thanks