Networking
Risk: Low
Port 995 — POP3S (POP3 over SSL/TLS)
Port 995 is the secure, encrypted port for POP3 email downloads, protecting mailbox authentication credentials and email content from packet sniffing.
PORT NUMBER
995
PROTOCOL
TCP
DEFAULT PROCESS
dovecot, pop3d
FIREWALL TARGET
995/tcp
Instant Terminal Fixes for Port 995
macOS & Linux Terminal
1. Check who is listening on port 995:
sudo lsof -i :995 || sudo ss -tulpn | grep ":995 "2. Kill process occupying port 995 (EADDRINUSE fix):
sudo systemctl stop dovecot3. UFW Firewall Allow rule:
sudo ufw allow 995/tcpWindows PowerShell (Admin)
1. Check listening port:
Get-NetTCPConnection -LocalPort 9952. Force kill process on port 995:
Stop-Service POP3Svc -Force -ErrorAction SilentlyContinue3. Docker Port Forwarding Mapping:
docker run -p 995:995 -d mailserver/docker-mailserverCommon Error Encountered
POP3S connection failed: SSL peer shut down incorrectly on port 995.
Security Advisory & Hardening
Secure replacement for legacy port 110. Restrict weak ciphers in mail server configuration.
Frequently Asked Questions
Port 995 Questions & Answers
Common questions regarding default services, kill commands, and firewall configurations.
Port 995 is commonly used for POP3S (POP3 over SSL/TLS). Port 995 is the secure, encrypted port for POP3 email downloads, protecting mailbox authentication credentials and email content from packet sniffing.