Add images to an email
Open the Images dialog in the template or campaign builder, or use Insert image in the Inbox composer. Choose an uploaded image or supply a public HTTPS URL. Add useful alternative text and check the layout with images disabled.
Supported uploads
- PNG, JPEG, GIF and WebP are accepted; file signatures are checked.
- Each image can be up to 5 MB.
- Uploads are limited to 100 per account per hour.
- SVG uploads are not supported.
Images are served through the API's public image URL so recipients can load them. Only upload assets intended to be visible to email recipients.
Storage allowances
Image storage is separate from inbox storage and shared at account level: Free includes 25 MB, Starter 500 MB, Growth 5 GB and Scale 20 GB. New uploads stop when the allowance is full; deleting images frees space. Review existing emails and templates before removing an asset they use.
Use /v1/images to list or upload assets and /v1/images/{id} to remove one. See the API reference for the current schemas. If uploads are unavailable, you can use externally hosted HTTPS images.