You can send a single card to as many as 100 people at one time.
Personalize your message and keep adding the receiver's names and email addresses one after another in the form.
When you click "send this ecard", 123greetings.com will format each card separately and send them out one by one. Every receiver gets a separate card number and a separate email. You will also be able to track each card separately and know when each one of them is picked up.
Since every card number is unique, no receiver can know how many cards were sent together or who all the cards were sent out to. For the receivers, each card is a personal one from you.