There hasn’t been any movement on this thread in a while. So I am going ahead and mark it as resolved.
@derinj Auto-Install Free SSL gets the subdomain from the cPanel over cPanel API. We have never seen cPanel API returns “webmail.” and “cpanel.” subdomains.
However, please post the cron output, we’ll check.
Thanks. Would you like to contribute translating to Russian? The process is straightforward. You can start here: https://translate.wordpress.org/projects/wp-plugins/auto-install-free-ssl/dev/ru/default/
However, some sentences (English) have been split into parts and could not be friendly for translation. We’ll fix it in a few weeks.
Thank you.
