Magnus Holmgren (holmgren@???) schrieb:
> Is X-BeenHere: present in the incoming mail, or added by the ACLs or a system
> filter? Otherwise $h_X-BeenHere: won't be set.
First, it is not.
It's been added in the redirect router and also
present when viewing the header of the resulting mail.
Replies to that email go through the same router,
but the router does not 'see' x-beenhere and the subject
is being re-prefixed.