> On Apr 23, 2018, at 1:45 PM, mario.barbosa+postfixus...@gmail.com wrote: > > Got any pointers on how to do this? What should I put in my to-read list > next?
I know of an implementation via custom hooks in amavisd-new, not open-source.
Don't know whether there's anything off-the-shelf you can use.
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Viktor.
