The free version of MailChimp goes up to 2,000 subscribers and 12,000 emails per month. If you exceed these limits then you have to upgrade to a MailChimp plans, on either a monthly basis or pay-as-you-go basis. Zeumic recommends that before you upgrade, you validate your email list in order to shorten the list as to lower costs (for more information, please read MailChimp Bounce Warning).
If you are still beyond 2,000 subscribers after shortening the list, then the only option is to upgrade on either of two plans: monthly basis, or pay-as-you-go basis.
- Monthly plans allow you to send as many emails as you require so long as you remain within a certain number of subscribers
- Pay-as-you-go plans require you to purchase email credits based on how many emails you’ll send, i.e. if you purchase 300 email credits, you can only send 300 emails.
Zeumic recommends the plans based on your situation. Those with a high volume of emails are better off with Monthly plans, whereas those who fewer are benefited greater with pay-as-you-go credits. Pricing plans can be found here at: MailChimp Pricing.