Can anyone tell me a bit more about them and what they do or dont do as I'm not 100% sure
Thanks
Verify SSL certificate:
Require verification of SSL certificate used by SMTP server.Warning: Connecting peers with unverified SSL certificates may cause security implications.
Set to Yes
Verify SMTP peer name:
Require verification of peer name for SMTP servers using SSL / TLS connections.Warning: Connecting to unverified peers may cause security implications.
Set to Yes
Allow self-signed SSL certificates:
Allow connections to SMTP server with self-signed SSL certificate.Warning: Allowing self-signed SSL certificates may cause security implications.
Set to No