Handling Bulk Email

IP.Board can handle only 1 bulk email each time, we need to wait for the current bulk email to finish before sending out another one.
if we try to send another one , then the previous one is automatically cancelled without alert

in this regard i want to suggest for future releases one of 3 options:
1- an alert prior to cancellation of the prvisous one, or
2- forcing the user to cancel the previous one, or
3- forcing the user to cancel or pause the previous one + a pause facility, which will allow max flexibility for users

option 3 will be great