When you use Word of Mail, pricing is very simple — you only pay when you send an email campaign to more than 5 people.
We offer discounts to big senders. If you’re a big sender or want to avoid lots of small transactions, we offer a pre-purchasing service where you can buy email credits in advance. You can use them any time you wish and they never expire. When you pay for your email campaigns using credits, you pay 1000 credits to send the campaign (instead of the $10), and 1 credit per email address.
Every time you buy credits, the first 50,000 are 4 cents each, the next 50,000 are 3.5 cents each and so on. So if you know you will use the credits up, it's best to buy them in one big transaction.