- Plesk Onyx for Windows
SSL is not working for MailEnable. How to enable SSL/TLS/STARTTLS for MailEnable mail server?
Since MailEnable version 9.10, SMTP SSL/TLS encryption is available in free MailEnable Standard edition.
To secure mail server with SSL, follow instructions from Plesk administrator guide
Starting from MailEnable version 9.60, SSL/TLS support can be enabled for IMAP on 143/tcp and SMTP on 25/tcp:
Connect via RDP
Open MailEnableAdmin and navigate to MailEnable Management > Servers > localhost > Services and Connectors
Right click on IMAP, open Properties, switch to the Settings tab, check the Enable SSL/TLS support and apply the settings
Right click on SMTP, open Properties, switch to the Inbound tab, check the Allow clients to establish secure sessions via STARTTLS and apply the settings
Restart IMAP and SMTP services using Plesk services management utility in the system tray:
- Check if TLS is offered by connecting to Plesk server IP address (from remote workstation or locally from the server):
C:\> telnet 203.0.113.2 25