Name of the Quota Resource Type,Description,Extra required IMAP commands/responses,Extra optional IMAP commands/responses,Author,Change Controller,Reference STORAGE,"The physical space estimate, in units of 1024 octets, of the mailboxes governed by the quota root.",DELETED-STORAGE STATUS request data item and response data item,N/A,[Alexey_Melnikov],[IESG],"[RFC9208, Section 5.1]" MESSAGE,The number of messages stored within the mailboxes governed by the quota root.,DELETED STATUS request data item and response data item,N/A,[Alexey_Melnikov],[IESG],"[RFC9208, Section 5.2]" MAILBOX,The number of mailboxes governed by the quota root.,N/A,N/A,[Alexey_Melnikov],[IESG],"[RFC9208, Section 5.3]" ANNOTATION-STORAGE,"The maximum size of all annotations [RFC5257], in units of 1024 octets, associated with all messages in the mailboxes governed by the quota root.",N/A,N/A,[Alexey_Melnikov],[IESG],"[RFC9208, Section 5.4]"