Hello. I try the following: testsaslauthd -f /var/spool/postfix/var/run/saslauthd/mux -u test -p passwordgood (pass OK) This is OK testsaslauthd -f /var/spool/postfix/var/run/saslauthd/mux -u test -p passwordgoodXXXXX (pass OK) This should FAIL The password is "passwordgood" but "passwordgoodXXXXX" is accepted too!!!!! But....for example "passwoCCrdgood" is NOT accepted debianet:/home/krasher# cat /etc/default/saslauthd START=yes MECHANISMS="pam" MECH_OPTIONS="" THREADS=5 OPTIONS="-c -m /var/spool/postfix/var/run/saslauthd" debianet:/home/krasher# cat /usr/lib/sasl2/smtpd.conf pwcheck_method: saslauthd mech_list: LOGIN PLAIN log_level: 5 debianet:/home/krasher/testing-smtp/new/commands/ff# cat /etc/pam.d/smtp @include common-auth @include common-session @include common-account @include common-password I use debian etch, what more can I look? I don't have saslauthd.conf file in the computer Thanks in advance Josep