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AS2 file transfer Server built on Python and Django.

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django-pyas2 is an AS2 server/client written in python and built on the django framework. The application supports AS2 version 1.2 as defined in the RFC 4130. Our goal is to provide a native python library for implementing the AS2 protocol. It supports Python 3.6+

django-pyas2 includes a set of django-admin commands that can be used to send files as a client, send asynchronous MDNs and so on. It also has a web based front end interface for configuring partners and organizations, monitoring message transfers and also initiating new transfers.


  • Technical

    • Asynchronous and Synchronous MDN

    • Partner and Organization management

    • Digital signatures

    • Message encryption

    • Secure transport (SSL)

    • Support for SSL client authentication

    • System task to auto clear old log entries

    • Data compression (AS2 1.1)

    • Multinational support: Uses Django’s internationalization feature

  • Integration

    • Easy integration to existing systems, using a partner based file system interface

    • Message post processing (scripting on receipt)

  • Monitoring

    • Web interface for transaction monitoring

    • Email event notification

  • The following encryption algorithms are supported:

    • Triple DES

    • RC2-128

    • RC4-128

    • AES-128

    • AES-192

    • AES-256

  • The following hash algorithms are supported:

    • SHA-1

    • SHA-224

    • SHA-256

    • SHA-384

    • SHA-512


You can find more information in the documentation.


If you run into bugs, you can file them in our issue tracker.


  1. Check for open issues or open a fresh issue to start a discussion around a feature idea or a bug.

  2. Fork the repository on GitHub to start making your changes to the master branch (or branch off of it).

  3. Create your feature branch: git checkout -b my-new-feature

  4. Commit your changes: git commit -am ‘Add some feature’

  5. Push to the branch: git push origin my-new-feature

  6. Send a pull request and bug the maintainer until it gets merged and published. :) Make sure to add yourself to AUTHORS.

Running Tests

Install django-environ and pytest into your environment to support the example.settings module and test framework.

To run django-pyas2's test suite: test pyas2 --settings=example.settings --pythonpath=.



Version 3, 29 June 2007

Copyright (C) 2007 Free Software Foundation, Inc. <> Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

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