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                                                             IMAP Mailbox Name Attributes

   Created
   2018-06-14

   Last Updated
   2025-12-22

   Available Formats
   [IMG]
   XML [IMG]
   HTML [IMG]
   Plain text

   Registry Included Below

     • IMAP Mailbox Name Attributes

IMAP Mailbox Name Attributes

   Registration Procedure(s)

 IETF Review or Expert Review

   Expert(s)

 Barry Leiba, Bron Gondwana

   Reference
   [RFC3501, Section 7.2.2][RFC8457, Section 6][RFC9051]

   Available Formats
   [IMG]
   CSV

   Attribute Name                         Description                                              Reference                         Usage Notes
   All            All messages                                                [RFC6154]
   Archive        Archived messages                                           [RFC6154]
   Drafts         Messages that are working drafts                            [RFC6154]
   Flagged        Messages with the \Flagged flag                             [RFC6154]
   HasChildren    Has accessible child mailboxes                              [RFC5258]                                            not used by JMAP
   HasNoChildren  Has no accessible child mailboxes                           [RFC5258]                                            not used by JMAP
   Important      Messages deemed important to user                           [RFC8457]
   Inbox          New mail is delivered here by default.                      [RFC8621, Section 10.5.1]                            JMAP only
   Junk           Messages identified as Spam/Junk                            [RFC6154]
   Marked         Server has marked the mailbox as "interesting"              [RFC3501][RFC9051]                                   not used by JMAP
   Memos          Identifies the mailbox where user-created memo messages are [RFC-ietf-mailmaint-messageflag-mailboxattribute-13]
                  stored.
   NoInferiors    No hierarchy under this name                                [RFC3501][RFC9051]                                   not used by JMAP
   NonExistent    The mailbox name doesn't actually exist                     [RFC5258]                                            not used by JMAP
   Noselect       The mailbox is not selectable                               [RFC3501][RFC9051]                                   not used by JMAP
   Remote         The mailbox exists on a remote server                       [RFC5258]                                            not used by JMAP
   Scheduled      Identifies the mailbox where messages scheduled to be sent  [RFC-ietf-mailmaint-messageflag-mailboxattribute-13]
                  at a later time are stored.
   Sent           Sent mail                                                   [RFC6154]
   Snoozed        Identifies the mailbox where temporarily snoozed messages   [RFC-ietf-mailmaint-messageflag-mailboxattribute-13]
                  are stored.
   Subscribed     The mailbox is subscribed to                                [RFC5258]
   Trash          Messages the user has discarded                             [RFC6154]
   Unmarked       No new messages since last select                           [RFC3501][RFC9051]                                   not used by JMAP

   Licensing Terms