Mail Transfer Systems — Common Ports
Community software entries: links are references, not individual verification.
Role Unconfirmed (1)
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 Mail Transfer Systems use?
Mail Transfer Systems commonly uses these ports: 57. These are community database references — actual configuration may differ.
How do I check if Mail Transfer Systems is running?
Run sudo ss -tlpn 'sport = :57' 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 Mail Transfer Systems belong to?
Mail Transfer Systems belongs to the System category. This page lists the software's port associations and their roles.
Quick Info
- Categories
- System
- Associated ports
- 1
- Aliases
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