Email Server Rate Limits
Each email server has an emails per hour limit that caps how many messages Broadcast will send through it in a rolling one-hour window. This protects your provider account from exceeding its allowance and helps maintain deliverability. When a server reaches its limit, sending pauses until older sends age out of the window.
Viewing the rate limit
Open Settings → Email Servers and select a server. The Rate Limiting section of its detail page shows the configured hourly limit, how many emails have been sent in the current window, and — when the cap has been reached — a rate limit reached indicator.

To change the hourly limit itself, edit the email server and update its emails per hour value.
Resetting the rate limit
If a server has hit its limit and you need sending to resume right away — for example, after your provider raises your allowance, or you’ve confirmed it’s safe to continue — click Reset rate limit. You’ll be asked to confirm.
Resetting moves the counting window forward to now, so only emails sent after the reset count toward the limit; a broadcast that was waiting on the rate limit can resume on its next check. Your historical send records are preserved — the reset only changes where the hourly count starts from.
Note: Resetting the rate limit doesn’t raise the limit or change your provider’s own throttling. If you regularly hit the cap, raise the server’s emails per hour value (within your provider’s allowance) instead of resetting repeatedly.