I'm planning on doing an AB subject line test with an audience size of over 1M.
I'm probably going to do 20% Subject A, 20% Subject B and 60% receive the remainder based on opens. I plan to test both subjects for about 4 hours due to the time sensitive promotion.
My question is, if I run my test from 6AM-10AM and the winner is sent thereafter automatically, will the system send the full 60% (remainder audience) within the hour since there is no throttling within the AB testing tool. Ideally, I would like to have the remainder sent fully within 2 hours at least.
Is this the case with SFMC? Will it be able to push out 600K within 2 hours?