IMAP Mailbox Name Attributes

Registry Included Below

Registration Procedure(s)

IETF Review or Expert Review

Expert(s)

Barry Leiba, Bron Gondwana

Reference

[RFC3501, Section 7.2.2][RFC8457, Section 6][RFC 9051]

Available Formats

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.	[RFC8621, 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