Modular email design is a way of creating an HTML email template to have moveable chunks that can be rearranged to create custom email designs, responsive email templates, and more.
Modular email designs help email teams save time and energy when building campaigns or newsletters. The modules support a recognizable style while switching up the elements to allow flexibility and keep subscribers engaged. More importantly, modular email design reduces the risk of making an email coding mistake because it creates repeatable process with reusable code.