No limitation on the number of emails you want to send out. MailRelease intends to arouse the low price revolution of email marketing. The price of our service is based on the active contacts you want to purchase, but not the total number of emails you intend to send out. For instance, if you purchase our service for 500 contacts for one month, then you can send out emails to these 500 contacts as many as you want during this month. We offer a special discount if you purchase semi-annually or annually.