Modern Newsletter

It opens: "Here is what you've missed Sed ut perspiciatis Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip...". 6 images, 35 Outlook-only blocks, no dark-mode query, web font.

The spread is what matters on this template: 100 in Apple Mail iOS against 67 in Outlook Classic, a 33-point gap across the same file. 2 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 174 warnings behind that score are concentrated there rather than spread evenly.

At 24KB compiled it has roughly 78KB 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: Section order, imagery and the number of stories. Newsletters are the one format readers scan rather than read, so the running order matters more than the copy inside any single block.

Leave alone: The single-column fallback below the media query. Outlook on Windows ignores the query entirely and renders whatever the table structure says, so a layout that only works inside the breakpoint collapses there.

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