RFC 8621 (4.1.1) - https://datatracker.ietf.org/doc/html/rfc8621#section-4.1.1 Possible default keys (user can create your own): $draft, $seen, $flagged, $answered, $forwarded, $phishing, $junk, $notjunk. Value always equal true if key exists
RFC 8621 (4.1.1) - https://datatracker.ietf.org/doc/html/rfc8621#section-4.1.1 Possible default keys (user can create your own): $draft, $seen, $flagged, $answered, $forwarded, $phishing, $junk, $notjunk. Value always equal true if key exists