Definition
Providers throttle to protect both sender and recipient infrastructure. Exceeding the limit causes deferrals, bounces and reputation hits.
Best Practices
- Know your provider limits before planning big sends.
- Pace sends rather than bursting to the limit.
- Handle throttle errors with exponential backoff.
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Frequently Asked Questions
To keep volume in line with capacity and reputation.
Messages are deferred, queued, or rejected.
Ramp volume, pace sends, and respect the published limits.