Throttling

A throttled send is just a send that goes out in controlled chunks instead of all at once. Your provider holds some emails back for a short time and releases them in batches. This keeps traffic steady into inboxes and makes your activity look more normal. Most of the time this happens in the background and you never notice.

Throttling matters when you send large campaigns or work with new lists. If you push a huge spike of email at once, inbox providers can treat it as risky and start deferring or blocking messages. Smarter platforms use throttling to protect your reputation and keep more messages in the inbox. They spread the send over minutes or hours so delivery stays smooth and predictable.

You can use throttling on purpose when you warm up a new domain or IP. Start with a smaller batch to your most engaged subscribers, then slowly increase volume over time. Watch bounces, spam complaints, and open rates as you scale up. If those numbers stay healthy, you can safely send larger campaigns without running into harsh limits.