Let’s face it: more than 60% of your email subscribers will open your messages on mobile devices. If your Brevo emails don’t look good on smartphones, you’re losing readers, clicks, and conversions. The good news? Brevo makes mobile-friendly email design surprisingly easy when you know what you’re doing.
Why Mobile-First Email Design Matters in Brevo
Mobile users have different needs than desktop users. They scroll with their thumbs, tap with their fingers, and often read emails in quick bursts between other activities. An email that looks professional on a desktop but breaks on mobile creates a frustrating experience that sends subscribers running to the unsubscribe button.
Brevo (formerly Sendinblue) offers robust tools for creating responsive emails, but the platform is only as good as your design strategy. Here’s everything you need to know about crafting emails that look stunning on every screen size.
Choosing the Right Brevo Email Template
Brevo provides a library of pre-built templates, but not all are created equal when it comes to mobile responsiveness. Here’s how to pick wisely:
- Look for "responsive" labels – Brevo marks templates optimized for mobile with specific indicators
- Choose single-column layouts – These automatically stack beautifully on mobile screens
- Test before committing – Use Brevo’s preview feature to see how any template renders on different devices
- Start simple – Complex multi-column designs often break on smaller screens
Brevo’s Drag-and-Drop Editor: Your Best Friend
The Brevo email builder uses a intuitive drag-and-drop interface that automatically generates mobile-responsive code. However, you need to understand how to work with it properly:
- Add content blocks one at a time rather than pasting large chunks of pre-written HTML
- Use the "mobile view" toggle while designing to catch issues early
- Keep text blocks narrow (600px maximum width) to prevent horizontal scrolling
- Space elements generously – tight spacing causes accidental taps on mobile
Essential Mobile Email Design Principles
1. Font Sizes That Actually Read Well
Your body text should be at least 14px, but 16px is better for mobile readability. Headlines should be 22px or larger. If subscribers need to pinch-to-zoom to read your email, you’ve already lost them.
2. Button Size Matters More Than You Think
Touch targets should be at least 44×44 pixels – roughly the size of a thumb tip. Brevo’s button block defaults are usually adequate, but always double-check in mobile preview. A button that’s too small frustrates users and kills your click-through rates.
3. Images Need Proper Sizing
Large images slow load times and get cut off on mobile screens. Best practices include:
- Compress all images before uploading (use tools like TinyPNG)
- Set image widths to 100% so they scale automatically
- Always include alt text for accessibility and when images fail to load
- Keep important content above the fold – don’t rely on scrolling to reveal key messages
4. Simplify Your Content
Mobile users skim, they don’t read. Trim your email content to the essentials:
- One clear call-to-action per email
- Short paragraphs (2-3 sentences maximum)
- Bullet points instead of long lists
- Remove navigation menus – they distract from your main CTA
Testing Your Brevo Emails Before Sending
Brevo offers built-in testing tools that you should use religiously. Here’s your testing workflow:
Step 1: Use the mobile preview toggle in the editor to see a basic mobile rendering.
Send test emails to yourself on actual devices – iPhone, Android, various email clients.
Step 3: Check how images display with images turned off (many users disable images by default).
Step 4: Verify all links work and buttons are tappable on touch screens.
Pro tip: Gmail, Apple Mail, and the default Android mail app each render HTML differently. Test across all three at minimum.
Common Mobile Email Mistakes to Avoid
Even experienced marketers fall into these traps. Don’t be one of them:
- Tiny unsubscribe links – Make them obvious and easy to tap
- Horizontal scrolling – Never exceed 600px width
- Text-as-image – Major deliverability issue and unreadable when images are blocked
- Auto-playing videos – They don’t work in most email clients anyway
- Too many images – Slow loading frustrates mobile users on the go
Advanced Brevo Features for Mobile Optimization
Conditional Content Blocks
Brevo lets you show different content to mobile versus desktop users. Use this feature strategically to:
- Display a longer message on desktop and a shortened version on mobile
- Show more product images on desktop, fewer on mobile
- Simplify complex layouts for mobile audiences
Access this through the "display conditions" option in your content block settings.
AMP Emails (For Advanced Users)
Brevo supports AMP (Accelerated Mobile Pages) for email, which enables interactive content like carousels and real-time updates. However, only Gmail and Yahoo fully support AMP, so only use this for specific campaigns where you know your audience uses these clients.
Measuring Your Mobile Email Success
Track these key metrics to understand how well your mobile emails perform:
- Mobile open rate – Brevo segments this automatically
- Mobile click-through rate – Are mobile users engaging?
- Mobile unsubscribe rate – A high rate signals mobile UX problems
- Conversion rate by device – The ultimate measure of mobile success
If mobile metrics lag behind desktop, your mobile design needs work. Don’t guess – let the data guide your optimization efforts.
Frequently Asked Questions
Does Brevo automatically make emails mobile-responsive?
Brevo’s drag-and-drop editor generates responsive code by default, but you still need to design with mobile in mind. Template choice, image sizing, and content structure all impact how well your email performs on mobile devices.
What’s the ideal email width for mobile?
Keep your email width between 500-600 pixels. This ensures your email displays fully on most mobile screens without horizontal scrolling.
How do I preview my Brevo email on mobile?
Use the mobile preview toggle in Brevo’s email editor, then send test emails to actual mobile devices to see the true rendering across different email clients.
Can I create different emails for mobile and desktop in Brevo?
Yes! Use Brevo’s conditional content blocks to show different content based on the device. This is useful for simplifying complex layouts for mobile audiences.
Why do my images look stretched on mobile?
Set your image width to 100% in Brevo’s image block settings. This allows images to scale proportionally to fit any screen size.
Ready to Create Emails That Shine on Every Screen?
Mobile-friendly email design in Brevo isn’t complicated, but it does require attention to detail and a mobile-first mindset. Start with the basics: choose responsive templates, use appropriate font sizes, make buttons tappable, and always test before sending.
The effort pays off in higher engagement, better conversions, and subscribers who actually enjoy hearing from you. Your mobile audience is waiting – give them emails worth opening.
Ready to take your Brevo email marketing to the next level? Implement these mobile design principles starting with your next campaign, and watch your engagement metrics improve. Need help? Consider reaching out to an email marketing specialist who can audit your current templates and provide personalized optimization recommendations.
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