The Pro plan of MailBluster is a combination of Prepaid and Postpaid service. You will be required to add a Billing Card to each of your MailBluster Brand and select the Pro plan to be able to send campaigns after clicking on Remove MailBluster branding. This will remove MailBluster branding from all the outgoing emails including the branding elements from email footers, unsubscribe pages, subscribe pages and forms under that specific brand. Also you will have access to Pro features: Automation, Custom Fields, Pro Templates, Export leads and Reports and much more.
The prepaid charge is $60 per year (equivalent to $5 per month).
There is no sending limit for the Pro plan and the pricing is postpaid, that is you will be billed only $0.60 for sending every 1000 emails from MailBluster. You will only need to pay based on your usage at the end of each month.
On each campaign edit page, at the bottom section, MailBluster displays how much it will cost you approximately for the campaign to send. If you select Remove MailBluster branding, you will be switched to Pro Plan.
Point to be noted, MailBluster does not include Amazon SES pricing as it is completely separate from MailBluster. Amazon SES will charge you $0.10 per 1000 emails after you cross their free quota limit (3,000 emails free per month). To learn more about Amazon SES pricing, visit: https://aws.amazon.com/ses/pricing.