Allowing an option for delivery emails to be resent
It would be nice to be able to manually send delivery emails to your shipments similar to the "resend confirmation" option. I created a 500 shipment batch order and did not have the shipment or delivary email enabled. I enabled both after the fact meaning they would only apply to any labels created moving forward. I was able to select all shipments and resend confirmations but was not able to "resend" delivery confirmation emails. You should be able to retroactively select these options.
In addition, it would be great if there was an option to edit an email that has been delayed. Often times a customer makes a last minute change after printing. It would be great to modify the email so all the order information is correct.