Same email. Different DNA.

Every email is rebuilt from the ground up for Gmail, Yahoo, and Outlook. Same design your customers see - completely different HTML structure underneath. Optimized for each inbox's unique requirements.

ONE CAMPAIGN, THREE BUILDS

Identical appearance. Completely different code.

G
Gmail

[Email preview placeholder]

Looks identical to recipients

</>UNDER THE HOOD
<table role="presentation">
<img alt="[gmail-optimized]"/>
<div style="[gmail-css]">
Y
Yahoo

[Email preview placeholder]

Looks identical to recipients

</>UNDER THE HOOD
<div class="yahoo-wrapper">
<img alt="[yahoo-optimized]" />
<span style="[yahoo-css]">
O
Outlook

[Email preview placeholder]

Looks identical to recipients

</>UNDER THE HOOD
<!--[if mso]>
<v:rect style="[outlook]">
<![endif]-->

Your recipients see the same beautiful email. The inbox providers see code built specifically for them.

HOW OTHER ESPs WORK

<!-- Same exact HTML -->
<table> ... </table>
<!-- Sent to everyone -->
Gmail🎲Maybe works
Yahoo🎲Maybe works
Outlook🎲Maybe works

One-size-fits-all HTML is a gamble

Gmail, Yahoo, and Outlook all have different rendering engines, different spam filters, and different preferences for how emails should be structured.

Most email platforms send the exact same HTML to every inbox and hope for the best. What works perfectly in Gmail might break in Outlook. What passes Yahoo's spam filters might trigger Gmail's.

How it works

You create one email. We build it three ways - automatically.

Your Campaign

One email, designed once

AI REBUILDS

FOR EACH INBOX

G

Gmail Version

Optimized for Gmail's rendering & filters

Inbox
Y

Yahoo Version

Optimized for Yahoo's rendering & filters

Inbox
O

Outlook Version

Optimized for Outlook's rendering & filters

Inbox

No extra work for you. No settings to configure. It just happens—every time, for every email.

What we optimize per inbox

Every element is tuned for where it's going.

HTML Structure

Different DOM structures, table layouts, and element hierarchies for each inbox's rendering engine.

Image Handling

Image formats, compression, dimensions, and loading behaviors optimized per inbox.

Alt Text

Alternative text structured and formatted for each provider's accessibility and spam systems.

Text-to-Image Ratio

Content balance calibrated to what each inbox's spam filters consider optimal.

CSS & Styling

Inline styles, selectors, and fallbacks tailored to each rendering engine's support.

And More

Dozens of invisible optimizations working together to maximize deliverability.

"The best deliverability is the kind you never have to think about."

When emails actually land in the inbox

Everything improves.

+30-50%

Open Rate Increase

+110%

Click Rate Increase

Plus everything you'd expect

All the standard deliverability features, handled automatically.

Automatic list hygiene

Domain authentication

SPF, DKIM, DMARC

Bounce handling

Reputation monitoring

Spam trap detection

Blacklist monitoring

Dedicated IPs

Your emails deserve to actually arrive.

See how inbox-native email building improves your deliverability.

AI Email Deliverability - Inbox-Native HTML Optimization - LTV AI