Hi Mr88talent, thanks so much for your patience.
The update of amavisd-new to 2.4.4 work perfectly.
about pyzor test, because with new version of SA --lint option now turns off net tests, i have followed what you told in this thread
viewtopic.php?t=456&highlight=dbg+dcc+local+tests+disabling+dcc
and as you say "echo test was a temporary fix".
Now, after running
su amavis -c 'spamassassin -D <sample-spam.txt' on the sample spam i have just downloaded, i can see that pyzor is working
dbg: pyzor: got response: 82.94.255.100:24441 (200, 'OK') 16 0
So one more time you solve all my problems without getting nervous about my "newbie questions" and that was very quick as usual.
I have another problem and this problem is not new for me.
in the debug output i can see there is a pb with sender policy framwork :
[6261] dbg: spf: no suitable relay for spf use found, skipping SPF-helo check
[6261] dbg: spf: no suitable relay for spf use found, skipping SPF check
[6261] dbg: spf: cannot get Envelope-From, cannot use SPF
[6261] dbg: spf: def_spf_whitelist_from: could not find useable envelope sender
[6261] dbg: spf: spf_whitelist_from: could not find useable envelope sender
Have you got a idea on the issue?
Thanks a lot.