Issue Obsidian on CentOS 7: Plesk generates broken Dovecot configuration if client tries to secure email with invalid ssl certificate

[burnley]

Sorry for cross-posting, but it's causing server-wide POP3/IMAP service outage. The original post is here:
Issue - Obsidian on CentOS 7: Plesk generates broken Dovecot configuration if client tries to secure email with invalid ssl certificate
Can you please look at it asap and push a fix? Or at least tell us how to disable the "Secure Mail" feature?
Thanks.