So I have a little vague question and I don't know what to even google to get right answer.
I am trying to setup email client on friend's computer remotely. I tried outlook, native windows 10 client and thunderbird, they all fail to connect server in anyway with all settings. While when I try any client on my PC, just basic settings like mail server, id, password work fine and after that I am able to retrieve configuration data. So what could be causing this behavior? Any steps to fix this or troubleshoot? Any help will be great.