Port 995: POP3S
POP3 over TLS. Open it only if your users still use POP3.
- Free
- No Sign-Up
- Runs in Your Browser
Port Lookup
Port 995 at a glance
Port995
ProtocolTCP
ServicePOP3S
Open to the Internet?Yes, if you run this service publicly
See What Is Listeningss -lntup | grep ':995 '
Test From Outsidenc -zv your-server 995
Block with UFWufw deny 995/tcp
Block with nftablesnft add rule inet filter input tcp dport 995 drop
POP3S uses TCP port 995. POP3 over TLS.
Open it only if your users still use POP3.
Open port 995 only on servers that run POP3S, and keep the software patched: public services are scanned within minutes of going online.
Other Ports
20 FTP Data21 FTP22 SSH23 Telnet25 SMTP53 DNS67 DHCP Server80 HTTP110 POP3123 NTP143 IMAP161 SNMP389 LDAP443 HTTPS445 SMB465 SMTPS514 Syslog587 Mail Submission853 DNS over TLS993 IMAPS995 POP3S1194 OpenVPN1433 Microsoft SQL Server1900 SSDP / UPnP2049 NFS2083 cPanel (SSL)2087 WHM (SSL)3306 MySQL / MariaDB3389 RDP3478 STUN / TURN5060 SIP5432 PostgreSQL5900 VNC6379 Redis8006 Proxmox VE8080 HTTP Alternate8443 HTTPS Alternate11211 Memcached25565 Minecraft27017 MongoDB51820 WireGuard
Questions
What is port 995 used for?
POP3S. POP3 over TLS.
Is it safe to open port 995?
Yes, if you run this service publicly. Open it only if your users still use POP3.
How do I check if port 995 is open?
On the server, ss -lntup | grep ':995 ' shows what is listening. From another machine, nc -zv your-server 995 shows whether the firewall lets it through.
How do I block port 995?
With UFW: ufw deny 995/tcp. With nftables, add a drop rule for dport 995 in your input chain.
Free Tools
More tools
Port LookupWhat runs on a TCP or UDP port, and whether it should be open.Firewall Rule GeneratorGenerate iptables, nftables and UFW rules for common server set-ups.What Is My IPYour public IP address, reverse DNS, network and ASN.IP Reputation CheckerCheck an IP against spam blocklists and threat feeds at once.
Abuse from open ports on your VMs?
Frabs spots amplification, scans and floods leaving any VM and stops them, without touching your firewall.