IMAP "$Important" Keyword and "\Important" Special-Use Attribute
RFC 8457

Received changes through RFC Editor sync (created alias RFC 8457, changed title to 'IMAP "$Important" Keyword and "\Important" Special-Use Attribute', changed abstract to 'RFC 6154 created an IMAP special-use LIST extension and defined an initial set of attributes.  This document defines a new attribute, "\Important", and establishes a new IANA registry for IMAP folder attributes, which include the attributes defined in RFCs 5258, 3501, and 6154.  This document also defines a new IMAP keyword, "$Important", and registers it in the registry defined in RFC 5788.', changed pages to 11, changed standardization level to Proposed Standard, changed state to RFC, added RFC published event at 2018-09-06, changed IESG state to RFC Published)