The slimta project is a Python library offering the building blocks necessary to create a full-featured MTA. Most MTAs must be configured, but an MTA built with slimta is coded. An MTA built with slimta can incorporate any protocol or policy, custom or built-in. An MTA built with slimta can integrate with other Python libraries and take advantage of Python's great community.

The slimta project is released under the MIT License.

Use a virtualenv to get started developing against slimta:

$ cd python-slimta/
$ virtualenv .venv
$ source .venv/bin/activate
(.venv)$ python setup.py develop

To run the suite of unit tests included with slimta:

(.venv)$ pip install nose
(.venv)$ python setup.py nosetests

To run one of the included examples:

(.venv)$ python examples/smtpmx.py

Note: Though this particular example will create an open relay on port 1337, it is only accessible from localhost. Hit Control-C to exit and kill the open relay.