What happens if a recipient is not yet a ZMAIL user?
If the sender allows it, ZMAIL offers an additional, secure, and very user-friendly way to read ZMAIL. The recipient is not required to login or even register in order to read the message once (reply requires login). The recipient receives the ZMAIL in her INBOX and has to click READ (i.e., perform an action). After the message is accessed once, any second attempt shows a notice that the message was already accessed once and can only be read again after login or registration.
