[Dovecot] Postfix and Dovecot SASL

Rene Bakkum rene.bakkum at gmail.com
Wed Nov 11 16:45:33 EET 2009


Hello all,

I am struggeling to get my Dovecot SASL to work within postfix. I have used
the configuration example listed on the main-site of dovecot and it
basically isn't giving me any success at all. I am probably missing
something easy, but after spending a few days testing and walking through
everything I could think about I thought figured it was better to ask :)
Hope someone can point me to the right direction.

My setup is that I have installed Ubuntu 9.04 (64bit), postfix and dovecot
linked to a MySQL database. The services are using maildirs which are stored
locally (no NFS). Postfix is using the LDA from dovecot to deliver the mail
and dovecot is used for IMAP and POP3. This is working and no problems at
all so far. The problem starts when I just want to enable the SASL
authentication from Dovecot. I used the 'guide' posted on
http://wiki.dovecot.org/HowTo/PostfixAndDovecotSASL

When I try to telnet to port 25 (smtp) than I doesn't looks like the SASL is
working...
220 mail003 ESMTP Postfix (Ubuntu)
ehlo localhost
250-mail003
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

Anything I missed in my configuration from either postfix/dovecot?
root at mail003:/etc/postfix# dovecot --version
1.1.11
root at mail003:~# dpkg-query -l postfix
+++-==============-==============-============================================
ii  postfix        2.5.5-1.1      High-performance mail transport agent

Here are my configurations of both:
root at mail003:/etc/postfix# dovecot -n
# 1.1.11: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.28-16-server x86_64 Ubuntu 9.04 ext4
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: imap pop3 imaps pop3s managesieve
ssl_cert_file: /etc/ssl/certs/ssl-mail.pem
ssl_key_file: /etc/ssl/private/ssl-mail.key
ssl_cipher_list:
ALL:!LOW:!SSLv2:ALL:!aNULL:!ADH:!eNULL:!EXP:RC4+RSA:+HIGH:+MEDIUM
login_dir: /var/run/dovecot/login
login_executable(default): /usr/lib/dovecot/imap-login
login_executable(imap): /usr/lib/dovecot/imap-login
login_executable(pop3): /usr/lib/dovecot/pop3-login
login_executable(managesieve): /usr/lib/dovecot/managesieve-login
login_greeting_capability(default): yes
login_greeting_capability(imap): yes
login_greeting_capability(pop3): no
login_greeting_capability(managesieve): no
mail_max_userip_connections(default): 10
mail_max_userip_connections(imap): 10
mail_max_userip_connections(pop3): 3
mail_max_userip_connections(managesieve): 10
mail_privileged_group: mail
mail_uid: 5000
mail_gid: 5000
mail_location: maildir:/home/vmail/%d/%n/.Maildir
mail_executable(default): /usr/lib/dovecot/imap
mail_executable(imap): /usr/lib/dovecot/imap
mail_executable(pop3): /usr/lib/dovecot/pop3
mail_executable(managesieve): /usr/lib/dovecot/managesieve
mail_plugin_dir(default): /usr/lib/dovecot/modules/imap
mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap
mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3
mail_plugin_dir(managesieve): /usr/lib/dovecot/modules/managesieve
imap_client_workarounds(default): outlook-idle delay-newmail
imap_client_workarounds(imap): outlook-idle delay-newmail
imap_client_workarounds(pop3):
imap_client_workarounds(managesieve):
pop3_client_workarounds(default):
pop3_client_workarounds(imap):
pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh
pop3_client_workarounds(managesieve):
sieve_storage(default):
sieve_storage(imap):
sieve_storage(pop3):
sieve_storage(managesieve): ~/sieve
sieve(default):
sieve(imap):
sieve(pop3):
sieve(managesieve): ~/.dovecot.sieve
auth default:
  mechanisms: plain login
  passdb:
    driver: sql
    args: /etc/dovecot/dovecot-sql.conf
  userdb:
    driver: sql
    args: /etc/dovecot/dovecot-sql.conf
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/dovecot-auth
      mode: 432
      user: postfix
      group: postfix
    master:
      path: /var/run/dovecot/auth-master
      mode: 384
      user: vmail
      group: vmail

root at mail003:/etc/postfix# postconf | grep sasl
broken_sasl_auth_clients = yes
cyrus_sasl_config_path =
lmtp_sasl_auth_cache_name =
lmtp_sasl_auth_cache_time = 90d
lmtp_sasl_auth_enable = no
lmtp_sasl_auth_soft_bounce = yes
lmtp_sasl_mechanism_filter =
lmtp_sasl_password_maps =
lmtp_sasl_path =
lmtp_sasl_security_options = noplaintext, noanonymous
lmtp_sasl_tls_security_options = $lmtp_sasl_security_options
lmtp_sasl_tls_verified_security_options = $lmtp_sasl_tls_security_options
lmtp_sasl_type = cyrus
proxy_write_maps = $smtp_sasl_auth_cache_name $lmtp_sasl_auth_cache_name
send_cyrus_sasl_authzid = no
smtp_sasl_auth_cache_name =
smtp_sasl_auth_cache_time = 90d
smtp_sasl_auth_enable = no
smtp_sasl_auth_soft_bounce = yes
smtp_sasl_mechanism_filter =
smtp_sasl_password_maps =
smtp_sasl_path =
smtp_sasl_security_options = noplaintext, noanonymous
smtp_sasl_tls_security_options = $smtp_sasl_security_options
smtp_sasl_tls_verified_security_options = $smtp_sasl_tls_security_options
smtp_sasl_type = cyrus
smtpd_recipient_restrictions = reject_unknown_sender_domain,
reject_unknown_recipient_domain, reject_unauth_pipelining,
permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = yes
smtpd_sasl_exceptions_networks =
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_path = private/dovecot-auth
smtpd_sasl_security_options = noanonymous
smtpd_sasl_tls_security_options = $smtpd_sasl_security_options
smtpd_sasl_type = dovecot


Any ideas?
Thanks for the response.
- Rene


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