All features at a glance
From single letters to bulk mailings, from the web interface to fully automated API integration.
Single letter
Upload a PDF, enter the address, send. As easy as an email – in under 60 seconds.
- PDF upload or DOCX conversion
- Colour and B/W printing, simplex or duplex
- Registered mail and Einschreiben Einwurf
- Shipping status in the dashboard
- Sender profiles for recurring senders
Mail merge with CSV
Hundreds of letters at once by CSV upload. Ideal for circulars, customer information and advertising letters.
- CSV upload with automatic column detection
- Placeholder mapping for personalised letters
- Real-time progress display
- Detect and correct faulty records
- Batch processing for optimal performance
Mail merge from PDF
Upload a finished mail merge, for example from Word mail merge, as one PDF. Ideal for invoices, reminders and payslips.
- All letters in one file, same number of pages per letter
- Address from the window area, checked against DIN 5008
- Correct addresses in the table
- Skip individual letters before starting
- Scanned PDFs via text recognition (OCR)
Dialogpost
Marketing campaigns from 5,000 letters with Deutsche Post Dialogpost postage: approx. €0.28–0.38 instead of €0.95.
- Campaign wizard with step-by-step guidance
- Low Dialogpost rates from 5,000 items
- Upload and manage target groups
- Scheduling with your preferred date
- Campaign reporting and statistics
Registered mail
Sending with proof of delivery. Standard, Einwurf or Rückschein – straight from your browser.
- Einschreiben standard, Einwurf & Rückschein
- Tracking number with a link to tracking
- Delivery receipt available from Deutsche Post
- Also available for mail merges
- Can be combined with colour printing
Letter editor
Design professional letters right in your browser – with templates, text formatting and drag & drop.
- WYSIWYG editor in the browser
- Text, images, tables and icons
- Google Fonts integration
- Save & reuse templates
- PDF export with one click
REST API
Integrate letter sending into your own software via a JSON API. Webhooks, sandbox and OpenAPI docs included.
- RESTful JSON API with an OpenAPI specification
- API keys for test and live environments
- Webhooks for status changes
- Rate limiting and transparent error handling
- Detailed documentation with code examples
Plugins & integrations
Direct plugins for Zapier, Make, n8n and Slack. Via Zapier/Make you connect DATEV, lexoffice, Salesforce and 5,000+ other apps.
- Zapier, Make & n8n plugins
- Slack notifications
- Via Zapier/Make: ERP, CRM, e-commerce
- Your own plugins via the plugin API
- REST API for custom connections
More ways to send a letter
With email-to-letter an email with a PDF attachment becomes a printed letter. Control recurring processes from your shop, CRM or accounting with automation.
Ready to send letters digitally?
Create a free account and send your first letter in a few minutes.