SVG for Email Marketing
SVG in email is a minefield — most major clients don't support it. Here's what works, what doesn't, and the safest strategies for sharp email graphics.
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Email Client SVG Support
The reality of SVG in email in 2026.
- Apple Mail (Mac + iOS): renders inline SVG and <img src='.svg'> correctly
- Gmail: strips SVG — use PNG
- Outlook 2016–2021: no SVG support — use PNG
- Outlook 365 (web): no SVG support — use PNG
- Samsung Mail: no SVG support — use PNG
- The Bat!, Thunderbird: partial SVG support — test before relying on it
The Safe Email Graphics Strategy
For universal email compatibility, don't use SVG — use high-res PNG.
- Export graphics at 2× display width (e.g., 300px wide for 150px display)
- Use PNG with transparent background for logos on colored email backgrounds
- Host images on your server (CDN) — don't embed as base64 in email body
- For Apple Mail-only campaigns (verified audience): inline SVG works
- Animated email graphics: use GIF — not SVG animation
Frequently Asked Questions
Why is SVG not widely supported in email?
Email clients are cautious about security — SVG can contain JavaScript. Most clients strip SVG to prevent XSS attacks. This is unlikely to change for Outlook as Microsoft prioritizes security.
What's the best image format for email logos?
PNG at 2× display resolution (retina-ready). A logo displayed at 150px wide should be exported as 300px PNG. This looks sharp on retina iOS and Mac Apple Mail while maintaining compatibility everywhere.
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