Emailing customers

I looked on the site, but did not find anything or it could be that I am still asleep lol. I need to know if I can add peoples email addresses to my zc and then just email all of them at one time. These are all customers I have had over the past year but I can't seem to find out how to input them in just to direct them to my site. Any help will be greatly appreciated and please go slow I am very new to this.

Thank you in advance for everyones help.

you could add them to the database, or create a ghost account with there email.

if you want to email them one by one then they're going to need an account for you to mail them through the site.

otherwise i believe there is still a newsletter subscribe box that you could enter there email addresses into, but then you would be emailing all newsletter subscribers.