Courier — Common Ports
Email & MessagingReference link ↗
Community software entries: links are references, not individual verification.
Role Unconfirmed (1)
110
tcpEmail & Messaging
POP3 (Post Office Protocol v3) fetches mail over TCP 110. After downloading, whether server copies are deleted depends on the client DELE command and server policy — unlike IMAP (143/993), which is designed to keep copies on the server. POP3 is plaintext; the TLS variant is POP3S on 995.
MailServer
Scope
Port associations on this page are community-database references (common usage), not a live measurement of any machine; confirm with the official documentation before deployment.
Quick Info
- Categories
- Email & Messaging
- Associated ports
- 1
- Aliases
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