[Pkg-exim4-users] no results on ACL file

[Thijs Koetsier | Exception]

Hi all,
 
I've installed Exim4.5 on Debian 3.0 and my new mailserver works just fine
and now I'm tuning some things before taking it into production.
Just today I found out on IRC#exim that the separated configuration-files
are specific to Debian, which I thought were the preferred new way for
Exim4.
However, nobody could therefore really help me with my questions, so perhaps
there's anybody here who can tell me why my file;
 
10_exim4-config_check_sender
 
with the contents;
 
acl_check_sender:
    deny    senders = my at email.address
    accept
 
isn't working... mail sent from the address gets in the mailbox just fine.
This is the only extra file in my ACL-folder, next to the distro-files.

Any help would be greatly appreciated ofcourse.
 
Cheers,
Thijs