Afther i changed to etch logcheck is not sending anymore reports.It's not a matter of iptables , in my lan hosts are allowed to communicate with each other on every protocol , it's not a matter of postfix in part .Main.cf is configured with $mydestination and $mynetworks well configured .If by hand i launch a Code: #sudo -u logcheck logcheck the mail gets sent but loocking at mail on my gmail account i found : I have a dyndns.com domain name and i'm forced to relay mail to my gmail account . Is possible i don't get my local mail delivered because this relaying ??? How can i get around this problem .... if so ?
I have done that , already !!! i have 'dpkg-reconfigured' nullmailer . It's really strange because if i do it manually , it works !