Digital Letters Guide
Learn how to send secure digital letters with file attachments through FuturePostman's advanced file sharing system. Schedule messages for future delivery with encrypted file access.
Compose Your Letter
Write your message and add file attachments
Schedule Delivery
Choose when your letter should be delivered
Secure Access
Recipients get a secure link to view and download files
Secure File Sharing System
Email Notification Only
Recipients receive a simple email notification - no heavy content or attachments in the email itself
Secure Access Link
The email contains one secure link to access all files and message content
Authentication Required
Recipients enter their email and access code to view content securely
Elegant File Viewer
Beautiful interface showing the message and all files with download options
- Files encrypted at rest
- Access code protection
- Time-based link expiration
- Download limit controls
- IP rate limiting
- No secrets in URLs
- Audit logging
Expiration Options
- • 1 hour - for sensitive documents
- • 1 day - for quick sharing
- • 5 days - for regular documents
- • 30 days - for important files
- • 90 days - default, maximum retention
Access Controls
- • Download limits per file
- • One-time access options
- • Password protection
- • View-only mode available
- • Bulk download as ZIP
Expiration Timer
File expiration starts counting when your letter is sent, not when it's scheduled. Plan accordingly for long-term scheduled deliveries.
Recipient Experience
Subject: You have a message from the past
Content: Simple, deliverability-friendly text notification
Access code: ABC123 (example)
Recipients get a clean, simple email with one secure link - no heavy attachments or complex formatting.
Message Section
- • Sender information with avatar
- • Subject line and timestamp
- • Full message content
- • File attachment summary
File Grid
- • File previews when possible
- • File names, types, and sizes
- • Individual download buttons
- • "Download All" option
Desktop: Two-column layout with message on left, files on right
Mobile: Stacked layout optimized for touch interaction
Supported File Types
✅ Do
- • Use clear, descriptive file names
- • Set appropriate expiration times
- • Include context in your message
- • Test with a trusted recipient first
- • Consider file sizes for mobile users
- • Use access codes for sensitive content
❌ Don't
- • Share passwords or sensitive data in files
- • Use overly short expiration times
- • Upload corrupted or damaged files
- • Forget to test download links
- • Share copyrighted material
- • Include malware or suspicious files
Ready to send your first digital letter?
Create secure file shares and schedule letters for future delivery with FuturePostman