I know this is a somewhat old thread, but I am new to Sophos UTM 9. I'm in the process of setting up my e-mail protection settings, specifically under the SMTP > Advanced then down to Smart-host Settings. Unlike the SMTP profile in the notification settings, TLS/SSL is not an option you can choose for the SMTP smarthost here in this section. My ISP restricts outbound ports and requires TLS/SSL in order to authenticate and relay outbound mail. Simply changing the host and the port with my credentials is not enough to get the SMTP smart-host working. Does anyone have a workaround for this? Or is there somewhere I can submit a feature request for this functionality? I'm sure I'm not the only one who has a use for this feature.
Hi, Joe, and welcome to the UTM Community!
The SMTP Proxy should try to negotiate that with the ISP's smart host. What are you seeing when you say it doesn't work?
Cheers - Bob
What explicit TLS/SSL settings do you need?
Authentication is configured in the box directly below the other smart host settings at the bottom of the 'Advanced' tab.
Cheers - Bob