>That said, email clients have a concept of an outbox where messages that were sent are placed until an internet connecton is established. At that point, those

>That said, email clients have a concept of an outbox where messages that were sent are placed until an internet connecton is established. At that point, those messages are actually sent to their recipients This is also possible with WhatsApp. Messages can be sent while not being online and will be delivered as soon as you go online.