Email functionality sending through batches

Would be awesome to have a functionality over the email to send an email through batches such as dividing your data base in %

I would love the capability to batch send to large lists! This would be great to keep from site-crushing floods of traffic after an email is sent!

(Mailchimp has this functionality)

When can we expect this?

(other threads posted the same idea, so combined this is a highly requested feature!)

Something where you can send for example 1000 emails in batches with X nr of minutes in between would be awesome!