Daily sending limit reached
When your daily or monthly sending limit is reached, campaigns pause automatically until the limit resets. Daily limits by plan: Pro ($14.99/mo) = 333 emails/day (10,000/month), Business ($29.99/mo) = 1,667 emails/day (50,000/month), Enterprise ($69.99/mo) = 3,333 emails/day (100,000/month), Ultimate ($199/mo) = 10,000 emails/day (300,000/month). Per-mailbox combined limits (warmup + campaigns) also apply. Solutions: 1) Wait until tomorrow when daily limits reset. 2) Upgrade your plan for higher quotas. 3) Add more mailboxes and use mailbox rotation to spread volume. 4) Reduce warmup volume to free up quota for campaigns. Check your current usage in the Billing page.