Be noted, OSS RustDesk Server does not support http proxy, you have to use Pro or public server. RustDesk traffic is already encrypted, you do not need to use https encrypting again (wasting power). I ...
Hmm.. I think you might want to look at authenticated outbound SMTP, and talk to the university SMTP server. To do this, you need SASL support enabled, and you can tell postfix to authenticate to the ...