[neomutt-users] limit to x-labelless

[Peter Szigetvari]

Hello,

I'm trying to limit my messages to duplicates without a label (X-Label).  
Search engines gave no hints.

The intuitive expression "~= ~y ''" did not work.  I then tried "~y ''", 
and that is also invalid.  Any ideas?

And while we're at it, can X-Label be edited while writing the message?  
(I have edit_headers set to yes)  Or before sending?

Thanks,
szigetva