Plesk for Linux
kb: how-to
kb: auxiliary
ABT: Group B
Applicable to:
- Plesk for Linux
Question
How to enable 587 submission port for Postfix/qmail mail server in Plesk?
Resolution
From Plesk interface
Go to Plesk > Tools & Settings > Mail Server Settings enable the Enable SMTP service on port 587 on all IP addresses check box and apply changes:
From SSH
- Connect to the server using SSH.
Note: if direct SSH access to the server is not possible, contact server administrator for further assistance.
- Execute the following command:
# /usr/local/psa/bin/mailserver --set-message-submission true
Comments
1 comment
Hello,
thank you very much for the information. I have a question about this. Does this setting enable/disable STARTTLS? Since a few days I am dealing with an issue that affects iOS and iPad OS. Here I have problems to establish a connection over port 465 for implicit TLS, to my Plesk server. For this reason I have enabled this setting: "Enable SMTP service on port 587 on all IP addresses". But I actually want to prevent STARTTLS from being used, as this is still error prone and "insecure" compared to SSL/TLS!
Greetings
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