Quick answer · Newsletter · 2 min read
What email width works best for Outlook compatibility?
A 600px container is the safest baseline for broad Outlook compatibility.
In this guide
The answer
Direct answer
Sticking to conservative layout width and clear section spacing reduces rendering regressions across desktop Outlook variants.
Where this guidance fits
Best fit
- Transactional templates
- B2B newsletters
- Cross-client production sends
Common mistakes
- Using wide multi-column structures that collapse poorly
- Relying on advanced CSS not supported in email clients
- Skipping client-specific QA before launch
Put this guidance into practice
Generate an email layout optimized for Outlook with a 600px container, clear hierarchy, and robust fallback-safe spacing.