(PHP 4 >= 4.0.5, PHP 5, PHP 7) Sets a quota for a given mailbox

(PECL mailparse >= 0.9.0) Parse RFC 822 compliant addresses

(PHP 4, PHP 5, PHP 7) This function returns an array of messages matching the given search criteria

(PHP 4, PHP 5, PHP 7) This function returns the UID for the given message sequence number

(PHP 4 >= 4.1.0, PECL cyrus 1.0) Unbind ...

(PHP 4, PHP 5, PHP 7) List all the subscribed mailboxes

(PHP 4, PHP 5, PHP 7) Clears flags on messages

(PHP 4, PHP 5, PHP 7) Read an overview of the information in the headers of the given message

(PHP 4, PHP 5, PHP 7) Create a new mailbox bool

(PHP 4, PHP 5, PHP 7) Read the list of mailboxes, returning detailed information on each one