SMTP Ports (25, 587, 465, or 2525) - What is SMTP Port? How to Choose the Best and Right SMTP Port?
It can be difficult to choose an SMTP port. When we set up the Simple Mail Transfer Protocol SMTP Server, the first question that comes to mind is this. Which port is the best for SMTP connections? There are a variety of ports to choose from, but which one should you use? Allow me to take you on a journey through the history of each port. It will give you a good understanding of all of the ports, and then we'll talk about which one is optimal for SMTP connections.