Please find sample code bellow:

        EmailMessage msg = new CMS.EmailEngine.EmailMessage();
        EmailTemplateInfo eti = EmailTemplateProvider.GetEmailTemplate("myTemplate", CMSContext.CurrentSiteID);
       
        MacroResolver mcr = new MacroResolver();
        mcr.SpecialMacros = new String[,] {{"#macro#", "text"}} ; //here you can specify text for multiple macros specified in template
       
        msg.EmailFormat = EmailFormatEnum.Both;
        msg.From = eti.TemplateFrom;
        msg.Recipients = "name@domain.com";
        msg.Subject = eti.TemplateSubject;
      
        EmailSender.SendEmailWithTemplateText(CMSContext.CurrentSiteName, msg, eti, mcr, true );

Please make sure you have 'Read' permission for newsletters module set for 'Everyone' in 'CMSDesk -> Administration -> Permission matrix' section.

If you use version 4.0 you will also need to correct typing error in web.config file. We are very sorry for this inconvenience. Could you please change following line in ~\CMSModules\web.config file from:

<location path="Newsletter/CMSPages/GetNewsletterIssue.aspx">

to:

<location path="Newsletters/CMSPages/GetNewsletterIssue.aspx">


You will need to change following lines in the same way as well:

<location path="Newsletter/CMSPages/GetCSS.aspx">

<location path="Newsletter/CMSPages/Unsubscribe.aspx">

You can find all e-mail templates in CMS Site manager -> Development -> E-mail templates. You specify site-specific templates by selecting a site in the dropdownlist in the mentioned location. You have to delete the global template first. Now just create a template with the same code name as the global one.

For example for the email “Order notification to customer” is always used the template with the code name Ecommerce.OrderNotificationToCustomer. So it means that you can create templates with this code name for each site.

Please check whether your newsletter issue template contains an editable region macro (check it here: CMS Desk -> Tools -> Newsletters -> Templates -> Edit). It often turns out that an editor deletes the following macro expression by accident: $$content:600:400$$. Once it is inserted back to your issue template, it is editable again.

Just a note: the “content” expression stands for a title of the editable region window – any codename (i.e. the name without spaces and special characters) can be used at its position.