Attachments

Adding attachments

Four ways:

• Drag-and-drop a file onto the compose window.
• Paste a file (e.g. screenshot from clipboard).
• Click the paperclip icon and pick files.
• On mobile, tap the paperclip and choose Files / Photos / Camera.

Each attachment uploads to our object storage as you add it. A progress bar is shown until upload completes; you can send the message any time after uploads finish.

Size limits

• Per attachment: 25 MB.
• Total per message: 50 MB across all attachments.

These are hard limits - SES rejects sends that exceed them. If you need to send something bigger, generate a share link with your own file host (Dropbox, Google Drive, iCloud Drive) and paste the URL into the message body.

Where attachments live

• Outbound: uploaded to our object storage, then streamed through SES at send time.
• Inbound: SES hands us the message; attachments are extracted into object storage and the message body links to them.

All storage is encrypted at rest. Attachments are scoped to your workspace via time-limited signed URLs - no public links unless you explicitly share one.

Previews

Common formats preview inline:

• Images (PNG, JPG, GIF, WebP, SVG, HEIC on iOS/Android).
• PDFs.
• Plain text, Markdown, source code (up to 1 MB).
• Video (MP4, MOV) with in-browser playback.

Other formats show a generic icon and a Download button.