Why Do Email Blasts Take So Long

The system staggers the delivery to prevent being flagged as spam, so it sends batches of 200-500 every couple of minutes... if the db is big enough, this could add up to a fair amount of time.

Add to that that once you hit send, the db has to build each email individually and store it, as they are all personalised... and so therefore, it may take a while before the first email is sent.

How long does it take? If we are talking many hours, then we may have a problem.