cPanel & WHM use standard ports to access administration interfaces and related services (webmail, email, etc.). This guide summarizes the key ports to know when troubleshooting connections or configuring a firewall.
cPanel, WHM, and Webmail interfaces
- 2082 — cPanel (HTTP, unencrypted)
- 2083 — cPanel (HTTPS, encrypted — recommended)
- 2086 — WHM (HTTP, unencrypted)
- 2087 — WHM (HTTPS, encrypted — recommended)
- 2095 — Webmail (HTTP, unencrypted)
- 2096 — Webmail (HTTPS, encrypted — recommended)
- 2089 — cPanel licensing service (outgoing)
Email: POP3, IMAP, and SMTP
Email clients (Outlook, Thunderbird, mobile devices, etc.) connect through the ports listed below. Always prefer encrypted versions.
- POP3: 110 (unencrypted) · 995 (SSL/TLS)
- IMAP: 143 (unencrypted) · 993 (SSL/TLS)
- SMTP (outgoing mail):
- 25 (standard, often filtered by ISPs)
- 26 (alternative, unencrypted)
- 587 (submission, STARTTLS — recommended)
- 465 (SSL/TLS)
Best practices and troubleshooting
- Always use HTTPS for cPanel/WHM/Webmail (ports 2083, 2087, 2096).
- For sending emails, prefer SMTP 587 (STARTTLS) or 465 (SSL/TLS).
- If access fails, check your local or corporate firewall and your internet router (port blocking).
- When using public or mobile networks, some ports may be filtered: test 587/465 and 993/995 first.
See also
- Setting up email accounts (IMAP/POP3/SMTP) in an email client
- Troubleshooting sending/receiving: common SMTP errors and solutions
- Accessing cPanel from the client area
