Hi there. I have installed the latest moodle stable version 3.9.2 on ubuntu 20.04 version. The platform-site works fine under https. I have definitely completed correct parameters in smtp outgoing settings but I got error that could not communicate with smtp server, on test and in any case. No email is sent. The php version is the latest. Should I make any other adjustment on php files or anywhere else? I also tested the same smtp settings in other web app but the same negative results.
Should I make any changes on Ubuntu level?