Sophos UTM 9.580-7: Can't save external SMTP-Server Settings in Management -> Notifications -> Advanced

Hey there,

when trying to save external SMTP Server settings with Sophos UTM 9.580-7, the error message "The external SMTP server for notifications authentication switch requires boolean data." is displayed. This happens both when "Authentication" is checked or unchecked.

 

Best Regards
Markus