I just switched from UW-IMAP to dovecot, and it all went smooth, except now I get a 4-5 second delay after connecting to the POP3 server (IMAP is fine). If I switch to auth "mechanisms=login", it is instantaneous - the delay is gone. In my logs I am getting :

Jul 9 12:21:03 haleakala dovecot: auth(default): client in: AUTH 1 PLAIN service=pop3 lip=205.168.236. rip=205.168.236. lport=110 rport=62500 resp=<hidden> Jul 9 12:21:03 haleakala dovecot: auth(default): plain(?,205.168.236.): invalid input Jul 9 12:21:03 haleakala dovecot: auth(default): new auth connection: pid=2750 Jul 9 12:21:03 haleakala dovecot: auth(default): client out: FAIL 1

and then it tries again apparently, and succeeds:

Jul 9 12:21:08 haleakala dovecot: auth(default): client in: AUTH 2 PLAIN service=pop3 lip=205.168.236. rip=205.168.236. lport=110 rport=62500 resp=<hidden> Jul 9 12:21:08 haleakala dovecot: auth-worker(default): pam(divad,205.168.236.): lookup service=dovecot Jul 9 12:21:08 haleakala dovecot: auth-worker(default): pam(divad,205.168.236.): #1/1 style=1 msg=Password: Jul 9 12:21:08 haleakala dovecot: auth(default): client out: OK 2 user=divad Jul 9 12:21:08 haleakala dovecot: auth(default): master in: REQUEST 217 2552 2 Jul 9 12:21:08 haleakala dovecot: auth(default): passwd(divad,205.168.236.): lookup Jul 9 12:21:08 haleakala dovecot: auth(default): master out: USER 217 divad system_groups_user=divad uid= gid= home=/home/david Jul 9 12:21:08 haleakala dovecot: pop3-login: Login: user=<divad>, method=PLAIN, rip=205.168.236., lip=205.168.236. Jul 9 12:21:08 haleakala dovecot: POP3(divad): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0

This "invalid input" error is happening for many clients on our mail server, but I am using Thunderbird 2.0.0.12.

The problem with using just "login" as a mechanism is that it doesn't seem to work with our Horde/IMP webmail system.

here is dovecot -n: # 1.2.0: /usr/local/etc/dovecot.conf # OS: Linux 2.6.18-1.2239.fc5smp i686 Fedora Core release 5 (Bordeaux) protocols: imap imaps pop3 pop3s disable_plaintext_auth: no login_dir: /usr/local/var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login login_greeting: Planetmind dovecot server ready. mail_location: mbox:~/mail:INBOX=~/mail/mbox mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 pop3_uidl_format(default): %08Xu%08Xv pop3_uidl_format(imap): %08Xu%08Xv pop3_uidl_format(pop3): %08Xv%08Xu auth default: mechanisms: PLAIN failure_delay: 0 verbose: yes debug: yes passdb: driver: pam userdb: driver: passwd

If anyone could shed some light on this, I'd really appreciate it. TIA.

-David

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<>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><>><> ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ David Hardy Planetmind Internetworks Nedernet, Inc ph 303.258.1103 http://www.planetmind.net http://www.nedernet.net

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