define external function MailInBoxOpen
                  value MailInBox this-MailInBox
                  value switch autodel optional initial {False}

This function opens the MailInBox for reading.

Arguments:

• "this-MailInBox" is an opaque object of type MailInBox.
• "autodel" is an optional switch that, when set to true, will cause all messages in the mailbox to be deleted from the server when the mailbox is closed. When set to false, only those messages marked for deletion will be deleted when the mailbox is closed. The default value of this switch is "false".

Example:

  MailInBoxOpen MyBox autodel False