A series of emails can be sent usually by email automation or a campaign. You can create both of these by using the features on Emailwish.
You can create an email automation by going on the tab called automations under the email page. By simply entering the name and the contacts you want to send the automation to, you can get started immediately. To do so all you have to do is click on the add new button on the top right-hand corner.
You can create a campaign by following similar steps. The campaign tab is also on the email page. You can click the add new button here as well to create a fresh campaign.