Port 995 — POP3S

TCP · Port 995/TCP is used for the secure Post Office Protocol version 3 (POP3S) service, which allows email clients to securely retrieve email from a mail server. This protocol provides encryption and authentication for POP3 connections, ensuring that email data remains confidential during transmission. Secure POP3 services are essential for organizations that require strong security measures to protect sensitive information.

Port Number: 995
Service Name: POP3S
Protocol: TCP
Common Software: Dovecot, Courier

Security Notes

Review IANA registry for port 995 usage. Apply principle of least privilege - only open ports that are required.

FAQ

What is port 995 used for?

Port 995 is used for POP3S. Port 995/TCP is used for the secure Post Office Protocol version 3 (POP3S) service, which allows email clients to securely retrieve email from a mail server. This protocol provides encryption and authentication for POP3 connections, ensuring that email data remains confidential during transmission. Secure POP3 services are essential for organizations that require strong security measures to protect sensitive information. Common software: Dovecot, Courier.

Is port 995 dangerous to leave open?

Review IANA registry for port 995 usage. Apply principle of least privilege - only open ports that are required.

How do I check if port 995 is open?

Use nmap: nmap -p 995 <target> or check locally: ss -tlnp | rg 995