Send Immediately not sending

When a generated email distribution is set to Send Immediately it is scheduled to be sent immediately, however it will not actually get sent until the next time the background process picks up the distributions, which is typically with the next 15 minutes, but can be longer at busy times.

The creator of the distribution will receive an email when sending begins and ends, you do not need to leave your browser open whilst the emails get sent.

If you browser is open on the Mail Generation / Distributions page, make sure you click the Refresh button to check if the distribution has been sent.