If a campaign you built in Raise More looks crisp in Gmail but the spacing, fonts, or layout shifts in Outlook, that is expected behavior across the email industry. Every email program reads and displays the same message a little differently. The same is true the other way around: an email tuned for Outlook can look slightly off in Apple Mail or on a phone. This article explains why that happens and how to build campaigns that hold up across the programs your donors actually use.
Why email programs display the same message differently
An email is HTML, similar to a web page. But unlike a web browser, every email program decides on its own how to interpret that HTML. There is no single standard they all follow, so the same message can render differently depending on where it is opened.
Outlook is the most common source of differences, and desktop Outlook on Windows is the biggest reason. For years, desktop Outlook has used Microsoft Word's engine to display email rather than a web engine. That leads to a few specific differences you may notice:
Spacing and padding between sections can look larger, smaller, or uneven compared to Gmail.
Some fonts are not supported, so Outlook falls back to a default font, which changes how text looks and wraps.
Background images often do not show at all.
Rounded corners on buttons or boxes may appear as square corners.
Line height and the space around text can shift, so a layout that fit perfectly in Gmail may break onto extra lines.
Gmail, Apple Mail, and most mobile apps use more web-like engines, so they tend to agree with each other more often than they agree with desktop Outlook. None of this is a Raise More bug. It is a constraint of how email works, and it affects every email tool.
How to check your email before you send
The best habit is to look at your campaign the way your donors will, before it goes out.
Use the Preview button in the email composer. The preview gives you a fast read on layout and content while you are still editing.
Use the Send Test Email button. This saves your current email as a draft and sends a copy to the email address on your own account, so you can open it in a real email program rather than only a preview window. A test send is the most reliable check.
Open that test in more than one place. Check it in Outlook, in Gmail, and on your phone. If you have access to a Windows desktop Outlook, check there specifically, since it is the strictest. Looking at it on a phone matters too, because a large share of donors read email on mobile.
If something looks wrong only in one program, you have found exactly the kind of difference this article is about. Adjust your design and send another test until it holds up everywhere you checked.
Design choices that travel well
You cannot control which program a donor uses, but you can build campaigns that survive the trip. A few choices reduce surprises:
Keep the layout simple. Single-column designs hold up far better across programs than multi-column ones. Outlook in particular is more forgiving of a stacked, top-to-bottom layout.
Use common, web-safe fonts. Fonts like Arial, Helvetica, Georgia, Times New Roman, and Verdana are widely supported. Decorative or uncommon fonts may be swapped for a default, which changes the look.
Do not rely on background images to carry meaning. If a background image does not load, the content on top of it still needs to read clearly. Put important text and buttons as real text, not baked into an image.
Add alt text to images. Some programs block images by default, so alt text tells the reader what an image is when it does not appear.
Do not depend on exact spacing. Treat your spacing as approximate. If a design only works when every gap is pixel-perfect, it will likely shift somewhere.
Keep your message readable as plain content. If the layout falls apart, the words, the ask, and the donate link should still make sense on their own.
What to do if it still looks off
If a test send still looks wrong in one program after you have adjusted it:
Simplify the section that is breaking. Reduce columns, remove a background image, or swap an unusual font for a web-safe one, then send another test.
Compare your tests side by side. Note which program is the outlier. If it is only desktop Outlook, the cause is almost always one of the differences listed above.
Send to yourself again after each change rather than guessing. One small change at a time makes it clear what fixed the problem.
A small amount of difference between programs is normal and not worth chasing. Aim for a message that reads clearly and looks good everywhere, not one that is identical pixel for pixel in every program.
FAQ
Is this a bug in Raise More?
No. It is how email programs work. Each one displays HTML on its own terms, and Raise More cannot force them to match.
Why is Outlook usually the problem?
Desktop Outlook on Windows has historically used Microsoft Word's engine to display email instead of a web engine, so it handles spacing, fonts, background images, and rounded corners differently from Gmail and Apple Mail.
Do I need to test in every program?
Testing in Outlook, Gmail, and on a phone covers most of your donors. Desktop Outlook is the strictest, so check there if you can.
My email looks perfect in the Preview but off in Outlook. Why?
The Preview is a quick approximation. A test send opened in the actual program is the real test, because it runs through that program's display engine. Use the Send Test Email button to get a real copy in your inbox.
Should I avoid images entirely?
No. Use images, but add alt text and do not hide important text or links inside an image or a background image, since those may not load.