Email throttling means limiting the number of messages sent to one ISP or server at a time. This can be important because some ISPs block senders when they send too many messages at one time. Essentially they are saying it looks like SPAM.
Email throttling can help you spread out the delivery of your messages to avoid ISP blocks.
With JangoMail, JangoMail doesn't throttle your email without your discretion. However, you can choose to have your email throttled.
Email throttling can also have other benefits. For example you could monitor a campaign’s progress and increase the number of emails that were being sent if they were doing well. Or, if you are asking email recipients to call someone, it would help make sure they weren’t overwhelmed with phone calls.
Email throttling is not for all users. While it is a benefit to some, it can be hindrance for businesses that count on mass email delivery in a timely manner. In this case email throttling is also known as rate limiting.
However, for those customers who wish to be able to throttle their email delivery we have a tool for that. You control how your emails are delivered.