Scheduled

Is a 'scheduled' send feature an improvement on the user experience (for the recipient) for Gmail?
Is schedule send in Gmail reliable?What is the use of scheduled in Gmail?Will recipient know if email is scheduled?Does my computer need to be on for...
How much time in advance should users be informed of an upcoming maintenance on app?
How do you announce a scheduled maintenance?How do you announce scheduled network maintenance to your users? How do you announce a scheduled mainten...