Throttling Email Requests

What's Email Throttling?

1. Email throttling is what happens when the receiving Internet Service Provider (ISP) limits the amount of email they can accept from the sender during a specified period.
2. During throttling, your Email Service Provider (ESP) sends emails to a bunch of people, but only for the first few sends.

1. What is email throttling?

What is email throttling?

Some ISPs limit (throttle) the amount of email they accept from a particular sender during a specified period of time. If you try to send email above their acceptable threshold, they will reject your email resulting in a high number of bouncebacks. This is email throttling and is also referred to as a “deferral.”