Conclusion: Mailgun payed the final $1500 bill.
tldr: Forgot to set custom sending limits on Mailgun’s flexible plan, and luckily Gmail rejected 87% of the emails. You do not need to pay for rejected emails at Mailgun!
$11,000.69
Conclusion: Mailgun payed the final $1500 bill.
tldr: Forgot to set custom sending limits on Mailgun’s flexible plan, and luckily Gmail rejected 87% of the emails. You do not need to pay for rejected emails at Mailgun!