Port 995

pop3s · TCP/UDP

RangeSystem/well-known port (0–1023)
ProtocolTCP/UDP
Servicepop3s
ReferenceRFC 8314
Modified2017-12-12

Frequently asked questions

What is port 995 used for?

Port 995 is registered with the IANA for pop3s (TCP/UDP). Description: POP3 over TLS protocol; pop3 protocol over TLS/SSL (was spop3).

Is port 995 a well-known port?

Yes. Port 995 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.

How do I check whether port 995 is open?

Locally on Linux with ss -tulpn | grep ':995\b', on Windows with netstat -ano | findstr :995. To test a remote host use Test-NetConnection <host> -Port 995 in PowerShell or nc -zv <host> 995 on Linux/macOS.

How do I open port 995 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 995/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=995/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 995" -Direction Inbound -Protocol TCP -LocalPort 995 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPpop3sPOP3 over TLS protocol
UDPpop3spop3 protocol over TLS/SSL (was spop3)

Nearby entries