RFC5258 LIST-EXTENDED #38

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opened 2023-12-29 16:31:22 +00:00 by quentin · 0 comments

quentin commented

2023-12-29 16:31:22 +00:00

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https://datatracker.ietf.org/doc/html/rfc5258

The extended LIST command, originally introduced in [RFC5258], provides capabilities beyond that of the original IMAP LIST command. The extended syntax is being used if one or more of the following conditions is true:
the first word after the command name begins with a parenthesis ("LIST selection options");
the second word after the command name begins with a parenthesis; andthe LIST command has more than 2 parameters ("LIST return options"). An empty ("" string) reference name argument indicates that the mailbox name is interpreted as by SELECT. The returned mailbox names MUST match the supplied mailbox name pattern(s). A non-empty reference name argument is the name of a mailbox or a level of mailbox hierarchy, and it indicates the context in which the mailbox name is interpreted. Clients SHOULD use the empty reference argument.

In the next example, we will see the subscribed mailboxes. This
is similar to, but not equivalent with, <LSUB "" "*">. Note
that the mailbox called "Fruit/Peach" is subscribed to, but does
not actually exist (perhaps it was deleted while still
subscribed). The "Fruit" mailbox is not subscribed to, but it
has two subscribed children. The "Vegetable" mailbox is
subscribed and has two children; one of them is subscribed as
well.

      C: A02 LIST (SUBSCRIBED) "" "*"
      S: * LIST (\Marked \NoInferiors \Subscribed) "/" "inbox"
      S: * LIST (\Subscribed) "/" "Fruit/Banana"
      S: * LIST (\Subscribed \NonExistent) "/" "Fruit/Peach"
      S: * LIST (\Subscribed) "/" "Vegetable"
      S: * LIST (\Subscribed) "/" "Vegetable/Broccoli"
      S: A02 OK done

https://datatracker.ietf.org/doc/html/rfc5258 > The extended LIST command, originally introduced in [RFC5258], provides capabilities beyond that of the original IMAP LIST command. The extended syntax is being used if one or more of the following conditions is true: the first word after the command name begins with a parenthesis ("LIST selection options"); the second word after the command name begins with a parenthesis; andthe LIST command has more than 2 parameters ("LIST return options"). An empty ("" string) reference name argument indicates that the mailbox name is interpreted as by SELECT. The returned mailbox names MUST match the supplied mailbox name pattern(s). A non-empty reference name argument is the name of a mailbox or a level of mailbox hierarchy, and it indicates the context in which the mailbox name is interpreted. Clients SHOULD use the empty reference argument. > In the next example, we will see the subscribed mailboxes. This is similar to, but not equivalent with, <LSUB "" "*">. Note that the mailbox called "Fruit/Peach" is subscribed to, but does not actually exist (perhaps it was deleted while still subscribed). The "Fruit" mailbox is not subscribed to, but it has two subscribed children. The "Vegetable" mailbox is subscribed and has two children; one of them is subscribed as well. ``` C: A02 LIST (SUBSCRIBED) "" "*" S: * LIST (\Marked \NoInferiors \Subscribed) "/" "inbox" S: * LIST (\Subscribed) "/" "Fruit/Banana" S: * LIST (\Subscribed \NonExistent) "/" "Fruit/Peach" S: * LIST (\Subscribed) "/" "Vegetable" S: * LIST (\Subscribed) "/" "Vegetable/Broccoli" S: A02 OK done ```