Port 3936
mailprox · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | mailprox |
| Registered | 2003-11 |
Frequently asked questions
What is port 3936 used for?
Port 3936 is registered with the IANA for mailprox (TCP/UDP). Description: Mailprox.
Is port 3936 a well-known port?
No. Port 3936 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 3936 is open?
Locally on Linux with ss -tulpn | grep ':3936\b', on Windows with netstat -ano | findstr :3936. To test a remote host use Test-NetConnection <host> -Port 3936 in PowerShell or nc -zv <host> 3936 on Linux/macOS.
How do I open port 3936 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 3936/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3936/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3936" -Direction Inbound -Protocol TCP -LocalPort 3936 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | mailprox | Mailprox |
| UDP | mailprox | Mailprox |