how can I restart the SMPT Service with Webamin?
Yes Nick KEY, so while login to the putty > you need to type loginuser so there you type in the password for the loginuser following with it type "su" where you need type in the root password !!…
Namaskaar and welcome to th UTM Community!
In UTM, you can restart the SMTP Proxy by disabling/enabling the Proxy on the 'Global' tab of 'Email Protection >> SMTP'.
Cheers - Bob