Email INBOX Preview

Stop guessing how your campaign will look in real mailboxes. With Email INBOX Preview, you can run a fast, repeatable pre-send check that shows exactly how recipients will see your message. Upload your final template, paste HTML, or connect your ESP, then choose the clients and regions you care about. The tool captures side‑by‑side snapshots of the mailbox listing (subject, sender, preheader, truncation) and the full message body across dozens of environments—including popular China‑based providers like QQ, 163/126, and Sina. In minutes, you’ll spot cut-off subject lines, broken emojis, mismatched fonts, clipped messages, blocked images, and layout shifts before they become support tickets.

Validate the code you actually ship. Instead of relying on editor previews, run checks against the compiled HTML exported by your builder or marketing platform. The system flags client-specific CSS support problems, media query gaps, font fallback issues, retina and scaling quirks, and dark‑mode inversions. It also tests image blocking, link integrity, tracking parameters, and accessibility basics like alt text and contrast. Each alert points to the affected selector or snippet so you can jump straight to a fix, re-upload, and confirm the result on the next pass. Use it as a tight edit loop: adjust spacing, swap a bulletproof button, update a fallback font, and recheck until your layout holds everywhere. more