Hi Andre, > On Mar 9, 2018, at 6:53 AM, André Rodier <an...@rodier.me> wrote: > > Hello, > > I would like to know if there is any milter for postfix that would let > me query a CardDav server? > > The idea is to add a custom header, for instance 'X-Address-Book: > Personal' if the from email address is referenced in a personal carddav > address book of the recipient. > > This will be used by a sieve filter, for instance to mark the emails as > "Personal" / or "importants", al GMail, to keep them in the inbox. > > Otherwise, if you can point me in a direction on how to write this, I > will be happy. I can write it in Go, C, Perl, Python, etc. > > I hope it's clear, thanks for your help.
I don’t have a solution to your question but out of curiosity, what is your CardDAV backend ? - J