Events Template · Adapted from MJML (MIT)

Street Expo Exhibition

Overall compatibility: 90/100 across 21 email clients · 20 of 21 clients passing (1 clean at 100%) · 235 compatibility warnings (0 error-level) · 30.7KB compiled HTML.

Cross-client fidelity Tested against 21 email clients. 1 of 21 clients render cleanly with 100% fidelity. Only Outlook Classic has reduced fidelity (67/100) due to legacy desktop engine constraints.

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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: 90/100 · 20/21 passing

21 clients tested

Apple Mail 100/100

Apple Mail iOS 97/100

Samsung Mail 97/100

HEY Mail 97/100

Superhuman 97/100

Thunderbird 94/100

Fastmail 94/100

Outlook 365 91/100

Outlook (New) 91/100

Outlook iOS 91/100

Outlook Android 91/100

Outlook for Mac 91/100

Gmail 88/100

Gmail Android 88/100

Gmail iOS 88/100

Yahoo Mail 88/100

Yahoo Mail Android 88/100

Proton Mail 88/100

Yahoo Mail iOS 85/100

AOL Mail 85/100

Outlook Classic 67/100

1 of 21 clients render with 100% fidelity. Lowest is 67/100 in Outlook Classic due to legacy desktop styling limitations.

Notes on this template

It opens: "Having trouble reading this email? Click here. //UNDERGROUND Street Art Expo Sponsered by Join us for a journey through the raw and unfiltered world of street art. Our Expo is a celebration of urban culture, featuring graffiti, murals, and installations...". Links: "boundaries of creativity", "Panama City, Panama", "Reserve your tickets", "Ricardo Freire". 7 images, 36 Outlook-only blocks, no dark-mode query, web font.

The spread is what matters on this template: 100 in Apple Mail against 67 in Outlook Classic, a 33-point gap across the same file. 1 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 235 warnings behind that score are concentrated there rather than spread evenly.

At 30.7KB compiled it has roughly 71KB 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: Copy, colour and imagery.

Leave alone: The table structure. It is what holds the layout together in Outlook, which resolves widths from cells rather than from CSS.

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

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