Question
How to enable / disable submission port 587 in on a Plesk server?
Resolution
Enabling port 587 via Plesk interface
Enabling port 587 via command-line interface
-
Go to Tools & Settings > Mail Server Settings.
-
Check / uncheck the setting Enable SMTP service on port 587 on all IP addresses.
-
Apply the changes.
-
Connect to the Plesk server via SSH (Linux) / RDP (Windows Server).
-
Run the command:
# plesk bin mailserver --set-message-submission true
Note: On Windows Server, start a command prompt as an Administrator.
To disable submission port 587, run:
# plesk bin mailserver --set-message-submission false