Check if port 995 is open
On the server, see what is listening:
sudo ss -tulpn | grep ':995 'From another machine, test reachability:
nc -zv your-server.example.com 995Port 995 (TCP) — POP3S
POP3 over TLS.
🔒 Runs locally — your input never leaves this browser tab
- Port
995- Protocol
- TCP
- Service
- POP3S
- Internet exposure risk
- Low
Standard secure POP3.