Sieve - disable redirect

[Miloslav Hůla]

Hi,

I would like to disallow "redirect" in sieve scripts to prevent 
automatical e-mail forwarding out of organisation.

I'dint find a way in [1], only "sieve_extensions" option and when I try 
"sieve_extensions = -redirect" I got:

# sievec test.sieve
sievec(root): Warning: sieve: ignored unknown extension 'redirect' while 
configuring available extensions

Is there any way?

Kind regards
Milo


[1] https://doc.dovecot.org/configuration_manual/sieve/configuration/