09-18-2019, 07:05 AM
Is your query about Windows or Linux? Just to mention, in Windows VPS you just have to open port 587 and your pretty much done. However, if you're on a Linux VPS like CentOS or anything else, you'll first need to install an RDP client called xrdp and also open the RDP port but this time for xrdp its 3389. Just confirm which OS it is and I'll tell you further.