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                                                             IMAP Mailbox Name Attributes

Created
        2018-06-14

Last Updated
        2026-06-01

Available Formats
        [IMG]
        XML [IMG]
        HTML [IMG]
        TXT

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
        [RFC 3501, Section 7.2.2][RFC 8457, Section 6][RFC 9051]

Available Formats
        [IMG]
        CSV

Attribute Name                                      Description                                               Reference            Usage Notes
All            All messages                                                                           [RFC 6154]
Archive        Archived messages                                                                      [RFC 6154]
Drafts         Messages that are working drafts                                                       [RFC 6154]
Flagged        Messages with the \Flagged flag                                                        [RFC 6154]
HasChildren    Has accessible child mailboxes                                                         [RFC 5258]                 not used by JMAP
HasNoChildren  Has no accessible child mailboxes                                                      [RFC 5258]                 not used by JMAP
Important      Messages deemed important to user                                                      [RFC 8457]
Inbox          New mail is delivered here by default.                                                 [RFC 8621, Section 10.5.1] JMAP only
Junk           Messages identified as Spam/Junk                                                       [RFC 6154]
Marked         Server has marked the mailbox as "interesting"                                         [RFC 3501]; [RFC 9051]     not used by JMAP
Memos          Identifies the mailbox where user-created memo messages are stored.                    [RFC 9979]
NoInferiors    No hierarchy under this name                                                           [RFC 3501]; [RFC 9051]     not used by JMAP
NonExistent    The mailbox name doesn't actually exist                                                [RFC 5258]                 not used by JMAP
Noselect       The mailbox is not selectable                                                          [RFC 3501]; [RFC 9051]     not used by JMAP
Remote         The mailbox exists on a remote server                                                  [RFC 5258]                 not used by JMAP
Scheduled      Identifies the mailbox where messages scheduled to be sent at a later time are stored. [RFC 9979]
Sent           Sent mail                                                                              [RFC 6154]
Snoozed        Identifies the mailbox where temporarily snoozed messages are stored.                  [RFC 9979]
Subscribed     The mailbox is subscribed to                                                           [RFC 5258]
Trash          Messages the user has discarded                                                        [RFC 6154]
Unmarked       No new messages since last select                                                      [RFC 3501]; [RFC 9051]     not used by JMAP

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