Do you want to write a message now, send it whenever even if you're not online? Schedule unlimited emails using Gmail.
Select the time zone, preferred date and time at which you want your email to be sent to your prospect.
The recipients receive your email at the right time and you always stay on top in their inbox.
Take a look at how it's easy: https://www.youtube.com/watch?v=2WsyVRip9uo&t=