[Exim] headers_add not working on redirect router

Hi !!

I have this router to handle virtual aliases:

virtual_aliases:
driver = redirect
allow_defer
allow_fail
data = ${lookup mysql {MYSQL_ALIAS}}
forbid_file
forbid_include
forbid_pipe
retry_use_local_part
skip_syntax_errors
errors_to = mailer-daemon@???
headers_add = X-Test: Test

but X-Test is never add, at least when the new address is a local
one, any way to know what this is not working ?

--
Thanx & best regards ....

Walls impede my progress

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