Hi! > It then falls through my personal sieve filter and hits the implicit > keep at the end and ends up in my inbox - with the original headers.
I had a similar issue recently (with addheader, not deleteheader) and I was pointed to the RFC: https://datatracker.ietf.org/doc/html/rfc5293#section-5 ``` The deleteheader action does not affect Sieve's implicit keep. ``` My addheader case was solved by adding an explicit keep or a fileinto. I hope that will also help you, Vincent
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