Mailbox-client and device coverage
Run previews across the mailbox clients and device contexts that matter for launch approval instead of relying on one inbox view.
Preview email layouts before customers do
Use MailSlurp device previews to review how messages render across mailbox clients and device contexts so launch approvals are based on evidence, not guesses.
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Preview features
Review the actual render artifacts before sign-off
Device previews should show the concrete outputs and diagnostics teams use to approve or block a send.
Explore
Screenshot artifacts for each target
Capture rendered screenshots per target so reviewers can inspect layout shifts, clipped text, and CTA placement visually.
Per-target diagnostics and support warnings
Keep compatibility details with each preview result so HTML or CSS support issues are visible beside the rendered message.
HTML and CSS support matrix by client and OS
Review feature support across clients and operating systems so teams can see exactly where markup or CSS choices are risky before send.
Review key device and client views side by side
Catch broken layout shifts, clipped text, or spacing problems before campaigns or transactional templates go live.
Capture screenshot evidence from the received message
Render a screenshot from the stored email so device review is attached to the message customers actually receive.
Give marketing and engineering one approval surface
Route rendering review into the same testing workflow used for auth, notifications, and pre-release message checks.
Developer integration
Generate preview screenshots from the delivered message
Wait for the real email to arrive, render a screenshot from the stored message, and keep preview review tied to the exact artifact customers will receive.
- Wait for the delivered message before rendering preview artifacts
- Capture screenshot evidence from the stored email instead of a copied template fragment
- Keep reviewers aligned on the same inbox-backed artifact trail
Next step
Start with signup or docs
Use the free account to validate the workflow in your own stack, then move into implementation details in the docs.