Can someone please recommend an Email Server Setting that will work for Email Threat Notifications

[CatCatCat]

Can someone please recommend an Email Server Setting that will work for Email Threat Notifications on a PA-220 ?

I have tried the Gmail Server - ASPMX.L.GOOGLE.COM and it is not working
Please provide a step by step example for how i can configure email threat notification
Please provide some email servers that does not use TLS as well
that works with the PA-220
Thank you

[reaper]

I have both my ISP and company mail server that work just fine with TLS

in google you can apparently choose to allow an IP rather than use authentication:

"

In the Authentication section, check one or both boxes to set an authentication method:

• Only accept mail from the specified IP addresses—The system only accepts mail sent from these IP addresses as coming from your domains.
• Require SMTP Authentication—Enforces the use of SMTP authentication to identify the sending domain. Using this option requires your clients to connect via TLS.

"

[ThanosTitan]

Thank you sir

We went with - SMTP2GO.com and everything works now 

Regards