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I've tried to use negative look-ahead in :regex match like this:

if header :regex "List-Id" "<svn-([^-]+)-(?!all)([^.]+)\.freebsd\.org>" { ... }

and manage-sieve server complains on save about such regex with diagnostic "repetition operator operand invalid" :(

Black Lion AKA Lev Serebryakov -----BEGIN PGP SIGNATURE----- Version: GnuPG v2

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