On Fri, 2011-09-16 at 00:02 +0200, Aleksandar Lazic wrote: > "Detecting duplicate messages" .. > Is there a similar feature in sieve
No. > or can I still use the upper setup? I think so. > Another question is about to add this header line in every mail. > > xfilter "${REFORMAIL} -a\"Lines: $LINES\"" What do you need it for? But nope, I don't think there's a way to do that with Sieve either. There's an extension to add headers, but it's not implemented yet. And I don't think there's a way to get the number of header lines.