Preheader text is displayed next to the subject line most commonly on mobile devices, Gmail, and Outlook (with certain notification settings). Some mobile devices (like Android) will block images by default, making preheader text even more important since this might be one of the first things that the subscriber sees before enabling images and opening your email.
What is email preheader text?
- Located above the logo or header in an email
- Seen at the top of your email design
- Some email clients will grab the first piece of code and display approximately the first 85 characters of the first HTML text...