yes You can purchase credits that work like stamps for email. Buy them when you need them, and don’t worry about squeezing value out of a monthly plan that doesn’t fit your needs.
Emails credits option:If you send less frequently, you
can purchase credits that work like stamps for email. Buy them when
you need them, and don’t worry about squeezing value out of a
monthly plan that doesn’t fit your needs.
Non-profit organizations option: 15% discount to all
non-profit organizations.
High-Volume Plans:Sending up to 30 million emails per
month to 3 million addresses...