- Plesk Onyx for Windows
- STARTTLS support on IMAP is selected during configure mail account setup.
- The following error appears during apply setup settings via Thunderbird mail client according to Access from Mozilla Thunderbird.
PLESK_INFO: Thunderbird failed to find the settings for your email account
STARTTLS support is disabled for MailEnable mail server.
Refer to this article to enable STARTTLS for MailEnable: How to enable SSL/TLS/STARTTLS for MailEnable mail server