I've setup the SonicWALL Antispam module and all went well with the config.
When trying to send a test mail to the incoming MX, I am getting the following error.
Any advise will be appreciated,
Connection: opening to mx2.domain.com:25, timeout=300, options=array (
SERVER -> CLIENT:
SMTP NOTICE: EOF caught while checking if connected
2017-11-24 08:38:17 The following From address failed: firstname.lastname@example.org : Called MAIL FROM without being connected,,,SMTP server error: Called MAIL FROM without being connected
Message sending failed.