Can't send emails from internal devices to external host
Notifications from my pfsense box work, but anything on the inside of my network won't send to my email hosting.
I can use Outlook to access my email using imap and smtp fine, but anything on the inside of the network trying to send to my host is not working.
I have a QNAP NAS that has worked previously but not now. I also have another network software controller that cannot send emails.
Firstly I did find that Suricata was blocking the traffic but I corrected that, I can see the packets in the firewall establish the connection with the email host, but does not send the email.
Performed a Packet Capture however I have no idea on how to read it.
My email is hosted by a webhost using cPanel, the smtp port is 465 with SSL/TLS