Short answer:
Follow best practices for email content, links, and images to reduce the risk of spam flagging.
Best practices for email deliverability
Keep a healthy text-to-image ratio
- Aim for 80:20 text-to-image ratio
- Minimum acceptable: 60:40
Limit the number of links
- Keep links to 5–6 or fewer
- Avoid excessive tracking or redirect links
Use trusted and clean URLs
- Avoid suspicious or overly complex URLs
- Prefer well-known or company domains
Use reliable image hosting
- Recommended: Xink-hosted images
- Alternative: your own domain (if trusted by recipients)
Design with simplicity in mind
- Avoid overly complex layouts
- Keep formatting consistent
- Test across different email clients
Test before full rollout
- Send test emails to different providers (Outlook, Gmail, etc.)
- Validate with a small user group
Summary
- Keep emails simple and balanced
- Limit links and images
- Use trusted domains and hosting
- Always test before deployment
