SmartBriefPublished Modified
SmartBrief Medium Rectangle 300x250 ad specs
SmartBrief Medium Rectangle 300x250 ads are horizontal still images, measured at 300×250 px, up to 0.15 MB per file, up to 15 seconds long, delivered as GIF, JPEG, or PNG. They run in the News sections of SmartBrief newsletters placement on SmartBrief.
- 300×250 px
- 6:5
- 150 KB
- 15 s
Visual
- Dimensions
- 300 × 250 px
- Max file size
- 150 KB
- File types
- GIF, JPEG, PNG
Video & audio
- Max duration
- 15 s
Notes & source
- GIF, JPEG or PNG up to 150k
- Animation up to 15 seconds
- Corners are rounded automatically, so keep logos and messages out of them and avoid borders
- Site-served only
- Due 3 business days before the send
- IAB size
- Source: SmartBrief 2024 spec PDFs
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