Sender Rewriting Scheme (SRS) library for Python
srslib is a modern Python implementation of the Sender Rewriting Scheme (SRS).
- Compatible with Python 2.7 and 3.x;
- Implements the standard “Guarded” SRS scheme as described in the original SRS paper;
- Simple to use and understand.
pip install srslib
import srslib srs = srslib.SRS('my_secret_key') # Rewrites an email from alice@A.com to B.com rewritten_addr = srs.forward('alice@A.com', 'B.com') # => 'SRS0=ZPM1=67=A.com=alice@B.com' # Reverse it to get the address to bounce to. try: bounce_addr = srs.reverse(rewritten_addr) # => 'alice@A.com' except srslib.Error as e: ... # Handle errors
The full documentation for srslib lives at https://srslib.readthedocs.io/.
This library is a clean re-implementation of SRS in modern Python based on the original SRS paper, and taking inspiration from the canonical libsrs2 C implementation and the older pysrs library (which itself is based on the Mail::SRS Perl package).
Compared to these two libraries, srslib
- … is a clean, modern, pure-Python implementation and supports Python 3.x;
- … discards baggage from Mail::SRS around legacy schemes and settings.
Licensed under the Apache License, Version 2.0.
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