Microsoft Exchange — Common Ports
Community software entries: links are references, not individual verification.
Role Unconfirmed (2)
Port 993 provides IMAP mailbox access over implicit TLS. It is for reading and synchronizing mail, not SMTP submission.
MicrosoftMailServer
TCP 995 is POP3S — POP3 wrapped in TLS from the first byte. It is the secure replacement for plaintext POP3 on 110 and the default in modern mail clients.
MicrosoftMailServer
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.
Frequently asked questions
What port does Microsoft Exchange use?
Microsoft Exchange commonly uses these ports: 993, 995. These are community database references — actual configuration may differ.
How do I check if Microsoft Exchange is running?
Run sudo ss -tlpn 'sport = :993 or sport = :995' on the server to check for listening processes on these ports. Also use systemctl status <service> to check the service state. Without root you may not see other users' processes. A listening port alone does not prove the software identity — verify with the config file and process name.
What category does Microsoft Exchange belong to?
Microsoft Exchange belongs to the Email & Messaging category. This page lists the software's port associations and their roles.
What other ports does Microsoft Exchange use besides the default?
Microsoft Exchange also uses these ports: 993, 995. Their purpose (admin interface, metrics, or alternative configuration) is detailed in the role-grouped list above.
Quick Info
- Categories
- Email & Messaging
- Associated ports
- 2
- Aliases
- —