expunge method
Expunges (deletes) any messages that are marked as deleted.
The EXPUNGE command permanently removes all messages that have the
\Deleted
flag set from the currently selected mailbox. Before
returning an OK to the client, an untagged EXPUNGE response is
sent for each message that is removed.
Implementation
Future<Mailbox> expunge() {
final cmd = Command('EXPUNGE');
return sendCommand<Mailbox>(cmd, NoopParser(this, _selectedMailbox));
}