Order Confirmation · Studio
Scored 94/100 across 21 email clients by the Emailens engine, 172 compatibility warnings (0 error-level), 18.1KB compiled HTML. Last verified .

Per-client compatibility
| Client | Score |
|---|---|
| Apple Mail | 100/100 |
| Apple Mail iOS | 100/100 |
| Samsung Mail | 100/100 |
| HEY Mail | 100/100 |
| Superhuman | 100/100 |
| Outlook 365 | 97/100 |
| Outlook iOS | 97/100 |
| Outlook Android | 97/100 |
| Outlook for Mac | 97/100 |
| Yahoo Mail | 97/100 |
| Thunderbird | 97/100 |
| Gmail | 94/100 |
| Gmail Android | 94/100 |
| Gmail iOS | 94/100 |
| Yahoo Mail Android | 94/100 |
| Yahoo Mail iOS | 94/100 |
| Fastmail | 94/100 |
| Proton Mail | 88/100 |
| AOL Mail | 88/100 |
| Outlook (New) | 76/100 |
| Outlook Classic | 70/100 |
Use it
Notes on this template
The spread is what matters on this template: 100 in Superhuman against 70 in Outlook Classic, a 30-point gap across the same file. 5 of the 21 clients render it without a single flagged property. Outlook Classic is the one to preview against after any edit, because it is where this template has the least margin, and the 172 warnings behind that score are concentrated there rather than spread evenly.
At 18.1KB compiled it has roughly 84KB of headroom before Gmail clips the message at 102KB and hides the rest behind a "View entire message" link. Inlined CSS and base64 images both count toward that, so watch it as you add sections.
Safe to customise. Line items, totals and the order reference. This is a receipt: the reader is looking for one number, and it should be findable without scrolling past a banner.
Leave alone. The table scaffolding around the item rows. Outlook derives row height from cell padding and ignores margins, so replacing the tables with divs turns an itemised receipt into touching lines of text.
Modified it? Check your version against the same 21 clients. The score above is computed from this file, so it moves when the file does.
Scores are computed by the Emailens engine from per-client support data derived from caniemail.com (MIT), analysed against 21 clients and last verified .
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