Email pre-headers are short summary text that follows the subject line when an email is viewed in the inbox.
Many mobile, desktop and web email clients provide them to give you an indicator of what the email contains before you open it up.
Adding a good pre-header to a email marketing campaign can make it more effective, increase open rates and bring in more business.
When creating an email template using 'Template Builder' software you have the option when building your template to add a pre-header to your email if you wish to at step 2 of the build process as shown below:
