This patch enforces `mailnews.auto_config.fetchFromISP.sslOnly` and resets `mailnews.auto_config.fetchFromExchange.enabled` to allow fetching from Exchange servers when auto-configuration is enabled.
It also resets two auto-configuration URL preferences as doing so prevented users from re-enabling this feature.
Co-authored-by: Samuel FORESTIER <samuel+dev@forestier.app>
This patch re-allows users to send HTML emails (when needed).
It also re-enables "resume from crash" (`browser.sessionstore.resume_from_crash`) and resets `calendar.extract.service.enabled` (already disabled by default).
Co-authored-by: Samuel FORESTIER <samuel+dev@forestier.app>