(PHP 4 >= 4.0.5, PECL vpopmail >= 0.2) Add a new virtual domain

(PHP 4, PHP 5, PHP 7) Delete all messages marked for deletion

(PHP 4, PHP 5, PHP 7) Returns all IMAP alert messages that have occurred

(PHP 4, PHP 5, PHP 7) Returns status information on a mailbox

(PHP 4 >= 4.0.7, PECL vpopmail >= 0.2) Insert a virtual alias

(PECL mailparse >= 0.9.0) Extracts a message section including headers without decoding the transfer encoding

(PHP 4, PHP 5, PHP 7) Fetch a particular section of the body of the message

(PHP 4, PHP 5, PHP 7) Read the header of the message

(PHP 4, PHP 5, PHP 7) Parses an address string

(PHP 4, PHP 5, PHP 7) Parse mail headers from a string