Reasons why emails may look different for some subscribers

Subscribers can see your email differently depending on their email client, device, and personal settings. This can show up as images that don't load, colors or fonts that don't match your Style panel, dark mode changing your design, or other rendering differences. Before publishing, it's best practice to send a test email to preview how your post looks across different inboxes.

This article covers the most common causes below.

Some email clients may block images due to factors like sender reputation or security settings. Improving your sending reputation can reduce this risk, but it’s important to know that certain subscribers' email providers may block images automatically.

You can’t override these settings, so here’s how to address image blocking:

• Include a link to the web version of your email, which is automatically added by beehiiv.
• Set the alt attribute for all images when uploading them, ensuring a fallback description if images don’t load.
• Use a balanced mix of text and images instead of relying solely on images to convey your message.

In organizations with strict firewall policies, such as government agencies, email servers may block images hosted on external domains like those used by beehiiv. To resolve this, firewall administrators will need to safelist the following image hosting domains:

• media.beehiiv.net
• *.beehiiv.com
• *.beehiiv.net

Some subscribers may have privacy settings that block images by default. While you can’t control these settings, enabling double opt in for your subscribers and encouraging them to adjust their preferences can help mitigate this issue.

Large emails may get clipped by certain providers like Gmail. beehiiv will notify you during the drafting process if your email is approaching the size limit, so you can adjust your content to prevent clipping and ensure all images load.

Whether your newsletter looks different in dark mode depends mostly on the subscriber's email client, since each client decides for itself how to handle color in dark mode. beehiiv also generates a darkened version of your theme's colors for clients that support dark mode detection in email, but this only applies in a subset of clients (Apple Mail). Most other major clients handle dark mode with their own automatic color inversion instead, which is outside of beehiiv's control.

• Apple Mail: May invert colors, especially for backgrounds and text.
• Gmail: Automatically inverts colors and does not use beehiiv's dark mode color values.
• Outlook: Behavior differs between Mac and Windows. Typically inverts colors on mobile.
• Yahoo: Tends to invert colors less aggressively than other clients.

Use transparent PNGs for logos and graphics: Transparent PNGs adapt to both light and dark backgrounds. Consider a lighter version of your logo or a translucent outline so it stays visible on dark backgrounds.

Maintain good contrast between text and background: Avoid low-contrast combinations, like light grey text on white. High contrast holds up better in both light and dark modes.

Stick with straightforward design choices: Off-white or light grey backgrounds, clearly colored hyperlinks, and well-styled buttons render more predictably across clients and modes.

Test across major email clients: Send test emails and switch between the Email, Web, Desktop, and Mobile preview views before publishing. For dark mode specifically, test with free accounts on Outlook, Apple Mail, Gmail, and Yahoo.

For more advanced testing, third-party tools like Litmus can preview your emails across a wider range of clients and modes before you send.

Email clients support far fewer fonts than web browsers do, so the Post Builder offers a curated set of email-safe fonts. Even when you pick a specific font, some subscribers may see a different one depending on their email client or device.

Every font in the Post Builder has a built-in list of fallback fonts. If a subscriber's client doesn't support your chosen font, the email falls back to the next font in that list automatically.

For example, choosing Poppins will attempt to load Poppins first. If that fails, which it will in Gmail and most other clients since Poppins isn't a web-safe font, the email falls back to Helvetica.

CSS support also varies by client. Gmail strips out <style> blocks entirely, while inline styles applied directly to elements have the highest compatibility across clients. This is part of why a font that looks right in your preview can render differently in a subscriber's inbox.

Which fonts are most reliable

These fonts have the highest likelihood of displaying correctly across operating systems, browsers, and email clients:

• Helvetica
• Arial
• Verdana
• Trebuchet MS
• Georgia
• Garamond
• Times New Roman
• Didot
• Palatino
• Courier
• Lucida Console
• Monaco

If consistent font appearance matters for every subscriber, choose one of these. For any other font, expect some subscribers to see the fallback instead.

If subscribers report that your email looks wrong or different from your preview, work through these checks:

Send test emails to multiple clients: Before publishing, send test emails to your own accounts on Gmail, Outlook, Apple Mail, and Yahoo, and check both desktop and mobile views.

Check for email clipping: If your email exceeds Gmail's size limit, part of your message gets replaced with an ellipsis and a "View entire message" link. See Ways to manage email weight and avoid Gmail clipping for how to stay under the limit.

Review your Style panel settings: Open the Style tab in the Post Builder and confirm your colors, fonts, and spacing match your intent. If subscribers report footer color issues specifically, check Style > Advanced > Email Footer, where footer colors can be set independently from the rest of your theme.

Consider forwarding behavior: Formatting can shift when an email is forwarded, due to differences in clients, devices, or browsers. This affects how images, media blocks, and styled text render, and it's common email behavior industry-wide, not specific to beehiiv.

Remember some rendering is out of your control: Email clients apply their own rules for displaying HTML, and a subscriber's privacy settings or device settings can change how your email looks. Design with flexibility in mind and prioritize clarity over pixel-perfect design.