Resources
Original research on interactive email
Sourced reports and data on email client rendering, interactivity, and deliverability — every number traceable to a named source, updated as the underlying data changes.
August 23, 2026
State of Email Client Rendering 2026
A sourced 2026 breakdown of which email clients render kinetic CSS, in-email forms, and AMP for Email, by real share of tracked opens.
Read the report →August 23, 2026
Apple Mail Privacy Protection Explained
How Apple's Mail Privacy Protection actually routes and pre-fetches images, why it inflates open rates, and why click, vote, and form-submit tracking survive it when open pixels don't.
Read the report →August 23, 2026
How CSS :checked Interactivity Works
The hidden-checkbox CSS technique behind carousels, accordions, quizzes, and forms in email — no JavaScript involved — and a sourced breakdown of exactly which clients render it.
Read the report →August 23, 2026
Dark Mode Email Support 2026
Which email clients honor prefers-color-scheme, which auto-invert or corrupt it instead, and why the color-scheme meta tag alone won't save a poorly tested email in 2026.
Read the report →August 23, 2026
Accessible Interactive Email Checklist
How WCAG 2.2's success criteria for alt text, contrast, keyboard access, and target size apply to CSS-only interactive patterns like carousels, accordions, polls, and forms in email.
Read the report →