Jinými slovy kalendář nemáte. Fakt jsou ty hrozny tak kyselé, nebo ta liška kecá, protože na ně nedosáhne?
K IMAP4: Unlike some proprietary protocols which combine sending and retrieval operations, sending a message and saving a copy in a server-side folder with a base-level IMAP client requires transmitting the message content twice, once to SMTP for delivery and a second time to IMAP to store in a sent mail folder. (to je k odesílání emailu)
IMAP4 clients need to explicitly request new email message content potentially causing additional delays on slow connections such as those commonly used by mobile devices. (to je k push email)