Definition
Mobile preview tools simulate how your email will appear on different mobile devices and email clients. They check: responsive layout behaviour, font size readability on small screens, CTA button tap target sizes (minimum 44x44 pixels), image scaling and loading, preheader visibility, and dark mode rendering. Free options include placing the email from your ESP's test send to your phone. Paid tools like Litmus and Email on Acid provide device-specific previews across dozens of phone models. With 50-70% of email opens on mobile, previewing on mobile is essential for every campaign.
Related Glossary Terms
Accessible CTA (Email)
An accessible CTA is a button or link coded with sufficient colour contrast, visible focus states, descriptive screen-reader text, and a minimum touch target of 44×44 pixels.
AMP for Email
AMP for Email is a Google-developed framework that allows email messages to include interactive elements like forms, carousels, accordions, and live content. It turns static emails into dynamic, interactive experiences directly inside the inbox.
Dark Mode
Dark mode in email refers to how email clients render messages when the recipient has dark mode enabled. It affects colour display, image rendering, and readability. Designers use CSS media queries and hybrid coding techniques to control the dark mode appearance.
Drag-and-Drop Email Editor
A drag-and-drop email editor is a visual interface that allows marketers to build email layouts by dragging content blocks into place without writing HTML or CSS code.
Dynamic Content
Dynamic content in email refers to content blocks that change based on subscriber data, behavior, or preferences within a single email send.
Email A/B Test Confidence Level
The confidence level in an email A/B test indicates the probability that the observed result is genuine and not due to random chance, with 95% being the standard threshold.