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Emailens
Marketing Template · Adapted from MJML (MIT)

Black Friday Sale

Overall compatibility: 93/100 across 21 email clients · 20 of 21 clients passing (3 clean at 100%) · 161 compatibility warnings (0 error-level) · 14.2KB compiled HTML.

Cross-client fidelity Tested against 21 email clients. 3 of 21 clients render cleanly with 100% fidelity. Only Outlook Classic has reduced fidelity (70/100) due to legacy desktop engine constraints.
email://preview/ mjml-black-friday.html
MJ

Attribution · MJML Open Source

Template adapted from the official MJML email-templates repository under the MIT License (© Mailjet / Sinch). Raw .mjml source code is included.

Client Compatibility

Score: 93/100 · 20/21 passing

21 clients tested
3 of 21 clients render with 100% fidelity. Lowest is 70/100 in Outlook Classic due to legacy desktop styling limitations.

Notes on this template

It opens: "WOMEN | MEN | KIDS Black Friday Take an extra 50% off Use code SALEONSALE* at checkout Shop Now * Offer valid on Allura purchases on 17/29/11 at 11:59 pm. No price adjustments on previous purchases, offer limited to stock....". 2 images, 16 Outlook-only blocks, no dark-mode query, system fonts.

The spread is what matters on this template: 100 in Superhuman against 70 in Outlook Classic, a 30-point gap across the same file. 3 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 161 warnings behind that score are concentrated there rather than spread evenly.

At 14.2KB compiled it has roughly 88KB 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: Imagery, colour and section order. This is the one category where restructuring is expected, and the per-client table on this page is how you check the restructure survived.

Leave alone: The image widths declared as HTML attributes as well as CSS. Outlook reads the attribute and ignores the stylesheet, so an image sized only in CSS renders at its natural pixel width and blows the layout out sideways.

Modified it? Check your version against the same 21 clients.

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Instant live preview · No signup required · 21 email engines