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Email rendering complianceReviewed September 7, 2026

What is Responsive email?

Responsive email adapts its layout and sizing so the message remains readable and actionable across narrow and wide viewports.

Who this applies to#

  • Use responsive treatment when columns, type, images, or buttons would otherwise become cramped or require horizontal scrolling on a narrow screen

What Responsive email requires#

  • Set layouts and media to fit the available width while retaining a logical reading order
Web standards

Media queries can apply styles according to viewport characteristics when the client supports them

What this does not require#

  • Responsive email does not require hiding essential content on smaller screens

Common mistakes#

  1. Shrinking desktop columns until text is unreadable
  2. Using fixed-width images that overflow
  3. Changing visual order without checking reading order

Responsive email checklist#

  • Use a fluid container
  • Constrain images
  • Size tap targets
  • Test narrow screens

Commonly confused with#

Official sources#