From one week to three - mainly, for the purpose of stopping account thefts and tricks like promises to say in the alliance upon receiving an account from alliance leadership and then, turning on Vacation Mode for a week until the e-mail change takes place.
Having an extra time for the previous account owner (and the alliance) to decide whether a chosen successor is capable of playing with the team or not seems like a reasonable gesture to me, therefore, I suggest increasing the number of days required for the new e-mail address to become permanent from 7 to 21 days.
Having an extra time for the previous account owner (and the alliance) to decide whether a chosen successor is capable of playing with the team or not seems like a reasonable gesture to me, therefore, I suggest increasing the number of days required for the new e-mail address to become permanent from 7 to 21 days.