[SA-exim] SAEximRunCond Always return 1

[Sil]

  Hi sa-exim users,

I'm using sa-exim 4.2.1-11 on my stable "Lenny" Debian and all messages 
are tested, but sometimes local deliveries are detected as spam.
If I understand the SAEximRunCond line of my configuration file, all my 
messages posted by the localhost should't be tested but all my local 
messages return 1.
I use procmail to move messages in Maildir subfolders and my exim 
version is exim4-deamon-heavy 4.69.9.
My SAEximRunCond line :
SAEximRunCond: ${if and {{def:sender_host_address} {!eq 
{$sender_host_address}{127.0.0.1}} {!eq {$sender_host_address}{::1}}}}

Verbose of sa-exim don't show any details of the test line.
How can I verify the value of sender_host_adress ?

Thanks
Sil