> > if header :matches "x-special1" "*\0*" { discard; } > > ==========
> > -Implicit keep
> > +No implicit keep
> > ==========
>
> Ah, I now see this is a consequence of sieve.c revision 1.30.
I was not aware of the test, but it can be changed to make use
of the encoded character extension (untested):
require "encoded-character";
if header :matches "x-special1" "*${hex:00}*" { discard; }