Limits on plans with payment per domain: For plans "Mail hosting 30, 50 and 100": 15,000 emails per day from the entire account and 500 emails per day from one box. An increase in the limit is possible upon request to the support service. Limits for plans for account payment: On the Mail for Domain plan, the limit for sending: 100 emails per hour from 1 account. On the "Business Mail" limit: 2000 letters per day from account, the limit per domain is 25000 per hour.