We assume that you have already logged into Zen Cart.
Click on the Tools link found on the main menu as shown below.
Sending E-mails in Zen Cart.

Then click on Send Email link, like the one below.
Sending E-mails in Zen Cart.
You can e-mail to a specific customer or send a mass e-mail to all your customers. You can also choose to send e-mails to your subscribed newsletter members.
Sending E-mails in Zen Cart.
The e-mail address in your store profile is set here by default.
Sending E-mails in Zen Cart.
Mark a subject tag.
Sending E-mails in Zen Cart.
Write your e-mail message here.
Sending E-mails in Zen Cart.
Click on the preview button found on the bottom right of the page.
Sending E-mails in Zen Cart.
You have one final opportunity to preview the details before sending out the e-mails. If all is Ok! Click on the send mail button.
Sending E-mails in Zen Cart.
That’s it, you now know how to send e-mails in Zen Cart.