Hi all, I am a newbie with dovecot. I have a problem with it's authentication.<br>&nbsp; -I installed dovecot 1.0 beta3 at /usr/local/dovecot.<br clear="all">&nbsp; -I want to use my linux system accounts with mail (authentication using /etc/passwd). 
<br>&nbsp; -I have a user account: huytq with password: 123456<br>&nbsp; -dovecot is started ok. I used telnet to login:<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; +OK Welcome LENSECAP HCM mail<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; user huytq<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; +OK<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pass 123456
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -ERR Authentication failed.<br><br>and this is the infolog file says:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dovecot: Mar 18 22:26:50 Info: auth(default): client in: AUTH&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PLAIN&nbsp; service=POP3&nbsp; lip=<a href="http://192.168.1.254">
192.168.1.254</a>&nbsp; rip=<a href="http://192.168.1.253">192.168.1.253</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; resp=&lt;hidden&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dovecot: Mar 18 22:26:50 Info: auth(default): passwd(huytq,<a href="http://192.168.1.253">192.168.1.253</a>): password mismatch
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dovecot: Mar 18 22:26:51 Info: auth(default): client out: FAIL&nbsp; 1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; user=huytq<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dovecot: Mar 18 22:27:50 Info: pop3-login: Disconnected: Inactivity: user=&lt;huytq&gt;, method=PLAIN, rip=<a href="http://192.168.1.253">
192.168.1.253</a>, lip=<a href="http://192.168.1.254">192.168.1.254</a><br><br>This is my conf file:<br><br>###################### dovecot.conf #################################<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; base_dir = /opt/dovecot/<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; protocols = pop3
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; listen = <a href="http://192.168.1.254">192.168.1.254</a><br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ssl_disable = yes<br><br>&nbsp; &nbsp; &nbsp; &nbsp; log_path = /usr/local/dovecot/log/log<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; info_log_path = /usr/local/dovecot/log/infolog<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; log_timestamp = &quot;%b %d %H:%M:%S &quot;
<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; disable_plaintext_auth = no<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; auth_debug = yes<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; auth_verbose = yes<br><br>auth default {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mechanisms = plain<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; passdb passwd {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; userdb passwd {<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; user = root<br>}<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; login_dir = /opt/dovecot/login<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; login_chroot = yes<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; login_user = dovecot<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; login_greeting = Welcome&nbsp; QuocHuy mail server<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; login_log_format_elements = user=&lt;%u&gt; homedir=%h&nbsp; method=%m rip=%r lip=%l %c
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; login_log_format = %$: %s<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; default_mail_env = maildir:/opt/mail_data/%u/Maildir<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mail_debug = yes<br><br>protocol pop3 {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; login_executable = /usr/local/dovecot/libexec/dovecot/pop3-login
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mail_executable = /usr/local/dovecot/libexec/dovecot/pop3<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pop3_uidl_format = %v.%u<br>}<br>#########################################################<br><br>Any opinion?<br>Thanks in advance.<br>-- <br>
Quoc Huy Trinh<br>