▲ 1 r/sharepoint
SharePoint News Email “Content too large” issue – size limit clarification
Hi,
We are currently trying to send a SharePoint News post via email and encountering the following error:
“The contents of this page are too big to send in email.”
We performed testing to understand the limitation and observed the following:
- Full newsletter (~5.29 MB) → ❌ Error
- Pages 1–12 (~3.11 MB) → ❌ Error
- Pages 1–11 (~2.80 MB) → ✅ Works
- Slight increase (~2.90 MB) → ❌ Error again
✅ Based on testing:
- Practical threshold seems around ~2.7–2.8 MB
- Above this, email rendering fails
❓ Questions:
- Is there a documented maximum size limit for SharePoint News email content?
- Is the limit based on:
- Total content size after rendering?
- Image count/size?
- Can this limit be configured or increased?
- What are the recommended best practices for image-heavy newsletters?
✅ Current understanding:
- It appears that the limitation is due to HTML email rendering size rather than just file size
Any clarification or official guidance would be appreciated.
Thanks.
u/Mysterious-Loquat619 — 8 days ago