Hullo Users, I setting up a mailserver with smtp authentication and the backend database is mysql 5.1.53 with pam_mysql and cyrus-sasl2 2.1.23 on slackware linux 13.1.When i telnet to test my server side authenication it gives me the error below: May 31 10:26:24 xxxxx postfix/smtpd[1475]: xsasl_cyrus_server_next: decoded response: May 31 10:26:24 xxxxx postfix/smtpd[1475]: warning: SASL authentication failure: All-whitespace username. May 31 10:26:24 xxxxx postfix/smtpd[1475]: warning: localhost[127.0.0.1]: SASL LOGIN authentication failed: generic failure May 31 10:26:24 xxxxx postfix/smtpd[1475]: > localhost[127.0.0.1]: 535 5.7.8 Error: authentication failed: generic failure. on doing a testsaslauthd : #testsaslauthd -u xx@xxxxxxxxxxxxx -p xxxxxx -f /var/state/saslauthd/mux -s smtp 0: OK "Success." When i do a Check for server-side SMTP AUTH configuration. I get the output below: #saslfinger -s -- content of /usr/lib64/sasl2/smtpd.conf -- #Global Parameters log_level: 7 allow_plaintext: true #pwcheck_method: saslauthd pwcheck_method: auxprop auxprop_plugin: mysql mech_list: plain login sql_engine: mysql sql_database: postfix sql_user: --- replaced --- sql_hostnames:127.0.0.1 sql_passwd: --- replaced --- sql_select: select password from mailbox where username='%u' AND active ='1' #sql_select: select password from mailbox where username='%u@%r' AND active ='1' # --------- saslauthd parameters-------------# saslauthd_path : /var/state/saslauthd/mux #saslauthd_path : /var/state/saslauthd -- content of /usr/local/lib/sasl2/smtpd.conf -- #Global Parameters log_level: 7 allow_plaintext: true #pwcheck_method: saslauthd pwcheck_method: auxprop auxprop_plugin: mysql mech_list: plain login sql_engine: mysql sql_database: postfix sql_user: --- replaced --- sql_hostnames:127.0.0.1 sql_passwd: --- replaced --- sql_select: select password from mailbox where username='%u' AND active ='1' #sql_select: select password from mailbox where username='%u@%r' AND active ='1' # --------- saslauthd parameters-------------# saslauthd_path : /var/state/saslauthd/mux #saslauthd_path : /var/state/saslauthd -- active services in /etc/postfix/master.cf -- # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) smtp inet n - n - - smtpd -v pickup fifo n - n 60 1 pickup cleanup unix n - n - 0 cleanup qmgr fifo n - n 300 1 qmgr tlsmgr unix - - n 1000? 1 tlsmgr rewrite unix - - n - - trivial-rewrite bounce unix - - n - 0 bounce defer unix - - n - 0 bounce trace unix - - n - 0 bounce verify unix - - n - 1 verify flush unix n - n 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - n - - smtp relay unix - - n - - smtp -o smtp_fallback_relay= showq unix n - n - - showq error unix - - n - - error retry unix - - n - - error discard unix - - n - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - n - - lmtp anvil unix - - n - 1 anvil scache unix - - n - 1 scache maildrop unix - n n - - pipe flags=ODRhu user=popmail:popmail argv=/usr/bin/maildrop -w 90 -d ${user}@${nexthop} ${extension} ${recipient} ${user} ${nexthop} cyrus unix - n n - - pipe user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user} old-cyrus unix - n n - - pipe flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user} -- mechanisms on localhost -- 250-AUTH PLAIN LOGIN 250-AUTH=PLAIN LOGIN -- end of saslfinger output -- Fellow users how can i fix this.All advice is highly welocme. Thanx in advance