On Tue, 2017-10-17 at 12:38 +0900, Stephen J. Turnbull wrote:
I gather you have completed your program already, but I had this in the works and it might be useful for people doing similar things.
If anyone is interested in my DMARC mitigation code for Courier-MTA it's online at <http://linode.fmp.com/contrib/dmarc_shield.py>. There are lots of usage notes and such in the code comments at the beginning of the program.
Stephen, as a first step to speeding this piece up, I've made the Organizational Domain database lookup local to the machine hosting the MTA so it's very fast and doesn't load the publicsuffix.org web server.
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