A: Hi, thank you for asking
30K email credit is not for each month. Basically with this AppSumo deal, you will get life time access to all of MailBluster Pro features and 30K email credit which you can use anytime to send out 30K emails.
MailBluster uses Amazon SES to send out email campaigns. Amazon SES has their own IP warm up process if you are using their shared IP pool or AWS SES Managed dedicated IP pools. But if you want to use Amazon SES standard dedicated IP pool, you will need to do the warmup process by gradually increasing the email sending volume rather than sending out a lot of emails at once.