Answer
What email width works best for Outlook compatibility?
A 600px container is the safest baseline for broad Outlook compatibility.
Direct Conclusion
Sticking to conservative layout width and clear section spacing reduces rendering regressions across desktop Outlook variants.
Best For
- 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
Reusable Prompt
Generate an email layout optimized for Outlook with a 600px container, clear hierarchy, and robust fallback-safe spacing.
Related Links
Last reviewed: 2026-04-06