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[Dovecot] NTLM authentication mechanism with Postfix
by Matthew Larsen 27 Jun '13

27 Jun '13

I'm working on getting authentication for Postfix smtpd clients working with Dovecot. I've got both plain text and GSSAPI mechanisms working. Winbind also works for shell access and the command line test work fine. If I can get NTLM authentication working I can use Postfix as a drop in replacement for a MS MTA I want get rid of. I'm hoping the community might be able to offer some insight into what I'm missing to get NTLM authentication working with Dovecot and Postfix. Something related to winbind I suspect. When I use the NTLM mechanism I get this in my maillog file. Nothing seems to show up in the winbind files for this. ---- log file from NTLM mechanism used ---- Jun 26 17:02:53 SBSMTPNV05 postfix/smtpd[2221]: connect from nvit01b.mydomain.com[10.20.2.0] Jun 26 17:02:53 SBSMTPNV05 dovecot: auth: Debug: client in: AUTH#0112#011NTLM#011service=smtp#011nologin#011lip=10.20.4.12#011rip=10.20.2.0#011resp=TlRM...A= Jun 26 17:02:53 SBSMTPNV05 dovecot: auth: Debug: client out: CONT#0112#011TlRM....A Jun 26 17:02:53 SBSMTPNV05 dovecot: auth: Debug: client in: CONT#0112#011TlRM....Q= Jun 26 17:02:53 SBSMTPNV05 dovecot: auth: winbind(?,10.20.2.0): user not authenticated: NT_STATUS_UNSUCCESSFUL Jun 26 17:02:55 SBSMTPNV05 postfix/smtpd[2221]: warning: nvit01b.mydomain.com[10.20.2.0]: SASL NTLM authentication failed: TlRM....A Jun 26 17:02:55 SBSMTPNV05 dovecot: auth: Debug: client out: FAIL#0112 Jun 26 17:02:59 SBSMTPNV05 postfix/smtpd[2221]: disconnect from nvit01b.mydomain.com[10.20.2.0] ------------------------------------------ ---- log file from GSSAPI mechanism used ----- Jun 26 17:02:08 SBSMTPNV05 postfix/smtpd[2221]: connect from nvit01b.mydomain.com[10.20.2.0] Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: auth client connected (pid=2221) Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: client in: AUTH#0111#011GSSAPI#011service=smtp#011nologin#011lip=10.20.4.12#011rip=10.20.2.0#011resp=YIIN.... Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: ....g== Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: gssapi(?,10.20.2.0): Obtaining credentials for smtp@ Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: gssapi(myusername(a)MYDOMAIN.COM,10.20.2.0): security context state completed. Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: client out: CONT#0111#011YIGVB....E= Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: client in: CONT#0111#011 Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: gssapi(myusername(a)MYDOMAIN.COM,10.20.2.0): Negotiated security layer Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: client out: CONT#0111#011BQQF/w....M= Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: client in: CONT#0111#011BQQE/w....u Jun 26 17:02:08 SBSMTPNV05 dovecot: auth: Debug: client out: OK#0111#011user=myusername Jun 26 17:02:08 SBSMTPNV05 postfix/smtpd[2221]: AE80A80592: client=nvit01b.mydomain.com[10.20.2.0], sasl_method=GSSAPI, sasl_username=myusername Jun 26 17:02:08 SBSMTPNV05 postfix/cleanup[2219]: AE80A80592: message-id=<51CB8100.1010103(a)example.com> Jun 26 17:02:08 SBSMTPNV05 postfix/qmgr[1999]: AE80A80592: from=<matthew(a)example.com>, size=2178, nrcpt=1 (queue active) Jun 26 17:02:08 SBSMTPNV05 postfix/smtpd[2221]: disconnect from nvit01b.mydomain.com[10.20.2.0] Jun 26 17:02:09 SBSMTPNV05 postfix/smtp[2220]: AE80A80592: to=<utegrad(a)gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.129.27]:25, delay=0.93, delays=0.09/0/0.15/0.69, dsn=2.0.0, status=sent (250 2.0.0 OK 1372291329 y9si419401pay.83 - gsmtp) Jun 26 17:02:09 SBSMTPNV05 postfix/qmgr[1999]: AE80A80592: removed ---------------------------------------------- ---- log file from plain text mechanism ----- Jun 26 17:01:08 SBSMTPNV05 postfix/smtpd[2209]: connect from nvit01b.mydomain.com[10.20.2.0] Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: auth client connected (pid=2209) Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=smtp#011nologin#011lip=10.20.4.12#011rip=10.20.2.0#011secured#011resp=AG1sYXJzZW4ASWRvbnR3YW50Mg== Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: pam(myusername,10.20.2.0): lookup service=dovecot Jun 26 17:01:08 SBSMTPNV05 dovecot: auth: Debug: pam(myusername,10.20.2.0): #1/1 style=1 msg=Password: Jun 26 17:01:09 SBSMTPNV05 dovecot: auth: Debug: client out: OK#0111#011user=myusername Jun 26 17:01:09 SBSMTPNV05 postfix/smtpd[2209]: 82C3780592: client=nvit01b.mydomain.com[10.20.2.0], sasl_method=PLAIN, sasl_username=myusername Jun 26 17:01:09 SBSMTPNV05 postfix/cleanup[2219]: 82C3780592: message-id=<51CB80C4.6020107(a)example.com> Jun 26 17:01:09 SBSMTPNV05 postfix/qmgr[1999]: 82C3780592: from=<matthew(a)example.com>, size=2728, nrcpt=1 (queue active) Jun 26 17:01:09 SBSMTPNV05 postfix/smtpd[2209]: disconnect from nvit01b.mydomain.com[10.20.2.0] Jun 26 17:01:10 SBSMTPNV05 postfix/smtp[2220]: 82C3780592: to=<utegrad(a)gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.129.27]:25, delay=1.3, delays=0.05/0.04/0.46/0.74, dsn=2.0.0, status=sent (250 2.0.0 OK 1372291270 sb1si125565pbb.232 - gsmtp) Jun 26 17:01:10 SBSMTPNV05 postfix/qmgr[1999]: 82C3780592: removed --------------------------------------------- Here's some of the supporting configuration information: ---- postconf -n ----------- alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix debug_peer_level = 1 debug_peer_list = html_directory = no inet_interfaces = all inet_protocols = ipv4 line_length_limit = 6144 mail_owner = postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man mydestination = $myhostname, localhost.$mydomain, localhost myhostname = srvsbsmtp05.mydomain.com newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES sample_directory = /usr/share/doc/postfix-2.6.6/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtpd_recipient_restrictions = permit_sasl_authenticated,reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous,noplaintext smtpd_sasl_type = dovecot unknown_local_recipient_reject_code = 550 ---------------------------------- ---- doveconf -n ---- # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-358.11.1.el6.x86_64 x86_64 CentOS release 6.4 (Final) auth_debug_passwords = yes auth_mechanisms = plain gssapi ntlm login auth_use_winbind = yes listen = * mbox_write_locks = fcntl passdb { driver = pam } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } ----------------------- ---- Samba configuration ---- [global] workgroup = MYDOMAIN realm = MYDOMAIN.COM server string = Samba Server Version %v security = ADS kerberos method = system keytab log file = /var/log/samba/log.%m max log size = 50 printcap name = /dev/null domain master = No template shell = /bin/bash winbind separator = + winbind use default domain = Yes idmap config * : range = 10000-50000 idmap config * : backend = tdb printing = bsd cups options = raw print command = lpr -r -P'%p' %s lpq command = lpq -P'%p' lprm command = lprm -P'%p' %j ------------------------------

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[Dovecot] Passdb + single sing on + NTLM + Thunderbird.
by Maria Jose Yañez Dacosta 27 Jun '13

27 Jun '13

Hi!, I want to use single sign on from Windows with Thunderbird or Outlook using NTLM. Which should be placed in the configuration file for passdb?. Currently I have: passdb { driver = pam } But it generates the following error when trying to check mail: dovecot: auth: pam (pepe, 190 108 101 120): unknown user If I remove imap passdb just does not work and I add at the end of this mail the log. Thank :) ----------------( dovecot -n )------------------------------ # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-358.6.2.el6.x86_64 x86_64 CentOS release 6.4 (Final) auth_debug = yes auth_mechanisms = plain login ntlm auth_use_winbind = yes auth_username_format = %n disable_plaintext_auth = no mbox_write_locks = fcntl passdb { driver = pam } protocols = imap pop3 ssl = no userdb { args = uid=10000 gid=10000 home=/mail/%d/%n driver = static } ----------------( wbinfo -t )------------------------------ checking the trust secret for domain FNR via RPC calls succeeded ----------------( wbinfo -u )------------------------------ list all users ----------------( wbinfo -g )------------------------------ list all groups ------------( /usr/bin/ntlm_auth --username=pepe )--------- password: NT_STATUS_OK: Success (0x0) ------------( tail -n 500 -f /var/log/maillog )------------- Jun 26 14:58:41 prueba-mail dovecot: master: Dovecot v2.0.9 starting up (core dumps disabled) Jun 26 14:59:00 prueba-mail dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Jun 26 14:59:00 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Jun 26 14:59:00 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Jun 26 14:59:00 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Jun 26 14:59:00 prueba-mail dovecot: auth: Fatal: No passdbs specified in configuration file. LOGIN mechanism needs one Jun 26 14:59:00 prueba-mail dovecot: master: Error: service(auth): command startup failed, throttling Jun 26 14:59:35 prueba-mail dovecot: imap-login: Error: Timeout waiting for handshake from auth server. my pid=1734, input bytes=0 Jun 26 15:00:00 prueba-mail dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Jun 26 15:00:00 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Jun 26 15:00:00 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Jun 26 15:00:00 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Jun 26 15:00:00 prueba-mail dovecot: auth: Fatal: No passdbs specified in configuration file. LOGIN mechanism needs one Jun 26 15:00:00 prueba-mail dovecot: master: Error: service(auth): command startup failed, throttling Jun 26 15:00:30 prueba-mail dovecot: imap-login: Error: Timeout waiting for handshake from auth server. my pid=1734, input bytes=0 -- Maria José

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[Dovecot] Dovecot-2.2.4 compiled error‏
by LauJacky 26 Jun '13

26 Jun '13

I compiled dovecot error, google did not find a solution. and I don't understand the code, how can i do Compiled dovecot-2.2.4 in "Linux OLinux 2.6.32-200.13.1.el5uek #1 SMP Wed Jul 27 21:02:33 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux "environment variables : #CPPFLAGS="-I/usr/include/openssl" LDFLAGS="-L/usr/lib/openssl" ./configure --with-ldap #make........gcc -DHAVE_CONFIG_H -I. -I../.. -I../../src/lib -I../../src/lib-settings -I../../src/lib-master -DPKG_RUNDIR=\""/usr/local/var/run/dovecot"\" -DPKG_STATEDIR=\""/usr/local/var/lib/dovecot"\" -DPKG_LIBEXECDIR=\""/usr/local/libexec/dovecot"\" -DBINDIR=\""/usr/local/bin"\" -I/usr/include/openssl -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -I/usr/kerberos/include -MT capabilities-posix.o -MD -MP -MF .deps/capabilities-posix.Tpo -c -o capabilities-posix.o capabilities-posix.cIn file included from /usr/include/sys/capability.h:34, from capabilities-posix.c:8:/usr/include/linux/capability.h:73: error: expected specifier-qualifier-list before â€˜__le32â€™make[3]: *** [capabilities-posix.o] Error 1make[3]: Leaving directory `/home/ldf/dovecot-2.2.4/src/master'make[2]: *** [all-recursive] Error 1make[2]: Leaving directory `/home/ldf/dovecot-2.2.4/src'make[1]: *** [all-recursive] Error 1make[1]: Leaving directory `/home/ldf/dovecot-2.2.4'make: *** [all] Error 2 Best regardjacky

1 1

[Dovecot] v2.1.17 released
by Timo Sirainen 26 Jun '13

26 Jun '13

http://dovecot.org/releases/2.1/dovecot-2.1.17.tar.gz http://dovecot.org/releases/2.1/dovecot-2.1.17.tar.gz.sig Hopefully among the last v2.1.x releases. + zlib: Keep the last read mail uncompressed in a temporary file. This significantly improves performance when IMAP client does small partial fetches for a large mail. + acl: Optionally get default ACL's for private/shared namespaces from user's INBOX (plugin { acl_defaults_from_inbox = yes } - Case-insensitive unicode character comparisons weren't all working as they should. - maildir: Fixed handling over 26 keywords in a mailbox. - auth: Don't crash in non-PLAIN/LOGIN auth mechanism if master user login is attempted without any master passdbs configured.

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[Dovecot] NTLM authentication with dovecot.
by Maria Jose Yañez Dacosta 26 Jun '13

26 Jun '13

Hi!, I'm trying to use single sign on from Windows. Install dovecot on CentOS 6. The host name is prueba-mail. I'm using version 2.0.9 because the latest 64-bit gives errors. But first I wanted to test whether user validation works with telnet. When I try to try "telnet prueba-mail imap" and try to "a1 LOGIN MyUsername MyPassword", I get the following error:prueba-mail dovecot: auth: pam(pepe,190.108.101.120): unknown user. I show my setup and I appreciate even the minimal support. ----------------( dovecot --version )------------------------ dovecot --version ----------------( dovecot -n )------------------------------ # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-358.6.2.el6.x86_64 x86_64 CentOS release 6.4 (Final) auth_debug = yes auth_mechanisms = plain login ntlm auth_use_winbind = yes auth_username_format = %n disable_plaintext_auth = no mbox_write_locks = fcntl passdb { driver = pam } protocols = imap pop3 ssl = no userdb { args = uid=10000 gid=10000 home=/mail/%d/%n driver = static } ----------------( wbinfo -t )------------------------------ checking the trust secret for domain FNR via RPC calls succeeded ----------------( wbinfo -u )------------------------------ list all users ----------------( wbinfo -g )------------------------------ list all groups ------------( /usr/bin/ntlm_auth --username=pepe )--------- password: NT_STATUS_OK: Success (0x0) ------------( tail -n 500 -f /var/log/maillog )------------- Jun 26 14:02:04 prueba-mail dovecot: master: Dovecot v2.0.9 starting up (core dumps disabled) Jun 26 14:03:22 prueba-mail dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Jun 26 14:03:22 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Jun 26 14:03:22 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Jun 26 14:03:22 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Jun 26 14:03:22 prueba-mail dovecot: auth: Debug: auth client connected (pid=1691) Jun 26 14:03:39 prueba-mail dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=imap#011lip=190.108.101.200#011rip=190.108.101.120#011lport=143#011rport=38118#011resp=<hidden> Jun 26 14:03:39 prueba-mail dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Jun 26 14:03:39 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Jun 26 14:03:39 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Jun 26 14:03:39 prueba-mail dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Jun 26 14:03:39 prueba-mail dovecot: auth: Debug: pam(pepe,190.108.101.120): lookup service=dovecot Jun 26 14:03:39 prueba-mail dovecot: auth: Debug: pam(pepe,190.108.101.120): #1/1 style=1 msg=Password: Jun 26 14:03:42 prueba-mail dovecot: auth: pam(pepe,190.108.101.120): unknown user Jun 26 14:03:44 prueba-mail dovecot: auth: Debug: client out: FAIL#0111#011user=pepe Jun 26 14:06:22 prueba-mail dovecot: imap-login: Disconnected: Inactivity (auth failed, 1 attempts): user=<pepe>, method=PLAIN, rip=190.108.101.120, lip=190.108.101.200 -- Maria José

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[Dovecot] How to manage email with an ISP restricted mailbox size?
by Tom Atkins 26 Jun '13

26 Jun '13

Sorry if this is a bit off topic but I'm hoping list members here might have some ideas. Aim: use ISP provided email with restricted inbox size but keep an IMAP accessible archive of emails (including 'sent' messages) on a remote server. Scenario: - Don't want to run my own SMTP server - Have free ISP email with 1Gb mailbox limit and spam filtering that works well - Have remote server with plenty of disk space - Want to use remote server for IMAP access to archive of email to avoid 1Gb ISP mailbox limit Options I tried: 1. Use ISP email via IMAP and periodically backup / archive messages to remote server with something like mbsync / isync to maildir format. Delete old messages on ISP server safe in knowledge they are backed up on my server. QUESTION: how to access those archives via IMAP (read only is OK)? 2. Use ISP email for sending messages only. Use Getmail / Fetchmail to move messages to remote server and run Dovecot there. I tried using Getmail to do this but couldn't figure out how to keep copies of 'Sent' and 'Draft' messages if the email client was configured to read via IMAP on one server and send via SMTP to another server. Any thoughts on how best to achieve my aims? Thanks, Tom.

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[Dovecot] Help installing Dovecot 1.0 on Debian 6.0.7
by Roshan Dawrani 26 Jun '13

26 Jun '13

Hi, Could someone please let me know if I can get the pre-built binaries for Dovecot 1.0 for Debian 6.0? If I do "apt-get install dovecot...", I am getting Dovecot v1.2.5 installed, but it doesn't like the existing Dovecot 1.0 configuration I have, and due to some urgency, I am trying to avoid migrating the configuration to the new structure / requirements. Regards, Roshan

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[Dovecot] /etc/passwd Centos + dovecot
by Dejan Doder 26 Jun '13

26 Jun '13

Hi group , I use system users with passwords defined in /etc/passwd. How can users change their passwords ? BR Dejan

5 4

[Dovecot] Dovecot 2 and managesieve
by Darek 25 Jun '13

25 Jun '13

Having some difficulty finding out whether managesieve is still a separate package (not seeing it in the FreeBSD ports tree, only one for 1.x) or whether it was integrated into the main 2.x package. I've only been using 1.2.x up to now, and trying to document a system install. So is it in the main distribution now? -- Darek

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[Dovecot] NTLM Authentication with Dovecot and Postfix
by Matthew Larsen 25 Jun '13

25 Jun '13

I'm trying to get NTLM authentication working with Dovecot to authenticate Postfix SMTP clients. I can authenticate postfix smtp clients using the plain text login mechanism via Dovecot and winbind. However, using the NTLM mechanism gives me an error in my maillog that says: "dovecot: auth: winbind(?,10.20.2.0): user not authenticated: NT_STATUS_UNSUCCESSFUL". At this point, I'm rather stuck. It appears PAM and winbind work for authenticating with AD because it works with the plain text mechanism, but I'm missing something with the NTLM authentication method. Any suggestions as to what I've got wrong, or other logging I can turn up / examine that might shed some light on this? /// Logging and configuration information below /// -- When I use the LOGIN mechanism I see this in the mail logging and the message is relayed: Jun 21 13:12:58 SBSMTPNV05 postfix/smtpd[1501]: connect from nvit01b.mydomain.com[10.20.2.0] Jun 21 13:12:58 SBSMTPNV05 dovecot: auth: Debug: auth client connected (pid=1501) Jun 21 13:12:58 SBSMTPNV05 dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=smtp#011nologin#011lip=10.20.4.12#011rip=10.20.2.0#011resp=AG[...snip...]g== Jun 21 13:12:58 SBSMTPNV05 dovecot: auth: Debug: pam(myusername,10.20.2.0): lookup service=dovecot Jun 21 13:12:58 SBSMTPNV05 dovecot: auth: Debug: pam(myusername,10.20.2.0): #1/1 style=1 msg=Password: Jun 21 13:12:58 SBSMTPNV05 dovecot: auth: Debug: client out: OK#0111#011user=myusername Jun 21 13:12:58 SBSMTPNV05 postfix/smtpd[1501]: 54EAF8059B: client=nvit01b.mydomain.com[10.20.2.0], sasl_method=PLAIN, sasl_username=myusername Jun 21 13:12:58 SBSMTPNV05 postfix/cleanup[1504]: 54EAF8059B: message-id=<51C4B3C8.30008(a)domain1.com> Jun 21 13:12:58 SBSMTPNV05 postfix/qmgr[1499]: 54EAF8059B: from=<someone(a)domain1.com>, size=2700, nrcpt=1 (queue active) Jun 21 13:12:58 SBSMTPNV05 postfix/smtpd[1501]: disconnect from nvit01b.mydomain.com[10.20.2.0] Jun 21 13:12:59 SBSMTPNV05 postfix/smtp[1505]: 54EAF8059B: to=<someone(a)gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.25.27]:25, delay=1.2, delays=0.23/0.04/0.16/0.72, dsn=2.0.0, status=sent (250 2.0.0 OK 1371845579 wf5si3786287pab.138 - gsmtp) Jun 21 13:12:59 SBSMTPNV05 postfix/qmgr[1499]: 54EAF8059B: removed -- I also see this in the secure log: Jun 21 13:12:58 SBSMTPNV05 auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=myusername rhost=10.20.2.0 user=myusername Jun 21 13:12:58 SBSMTPNV05 auth: pam_winbind(dovecot:auth): getting password (0x00000010) Jun 21 13:12:58 SBSMTPNV05 auth: pam_winbind(dovecot:auth): pam_get_item returned a password Jun 21 13:12:58 SBSMTPNV05 auth: pam_winbind(dovecot:auth): user 'myusername' granted access Jun 21 13:12:58 SBSMTPNV05 auth: pam_winbind(dovecot:account): user 'myusername' granted access -- However, when I switch the mechanism to NTLM in the Thurnderbird MUA I see this: Jun 21 13:15:46 SBSMTPNV05 postfix/smtpd[1506]: connect from nvit01b.mydomain.com[10.20.2.0] Jun 21 13:15:46 SBSMTPNV05 dovecot: auth: Debug: Loading modules from directory: /usr/lib64/dovecot/auth Jun 21 13:15:46 SBSMTPNV05 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libauthdb_ldap.so Jun 21 13:15:46 SBSMTPNV05 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Jun 21 13:15:46 SBSMTPNV05 dovecot: auth: Debug: Module loaded: /usr/lib64/dovecot/auth/libmech_gssapi.so Jun 21 13:15:46 SBSMTPNV05 dovecot: auth: Debug: auth client connected (pid=1506) Jun 21 13:15:46 SBSMTPNV05 dovecot: auth: Debug: client in: AUTH#0111#011NTLM#011service=smtp#011nologin#011lip=10.20.4.12#011rip=10.20.2.0#011resp=TlRMT[...snip...]A= Jun 21 13:15:46 SBSMTPNV05 dovecot: auth: Debug: client out: CONT#0111#011TlRMT[[...snip...]A Jun 21 13:15:46 SBSMTPNV05 dovecot: auth: Debug: client in: CONT#0111#011TlRMT[...snip...]A= Jun 21 13:15:46 SBSMTPNV05 dovecot: auth: winbind(?,10.20.2.0): user not authenticated: NT_STATUS_UNSUCCESSFUL Jun 21 13:15:48 SBSMTPNV05 postfix/smtpd[1506]: warning: nvit01b.mydomain.com[10.20.2.0]: SASL NTLM authentication failed: TlRMT[...snip...]A Jun 21 13:15:48 SBSMTPNV05 dovecot: auth: Debug: client out: FAIL#0111 Jun 21 13:15:49 SBSMTPNV05 postfix/smtpd[1506]: disconnect from nvit01b.mydomain.com[10.20.2.0] -- with nothing in the secure log and I don't see anything show up in the winbind logs either. -- I've reviewed these pages as reference, and I'm not sure what I'm missing: http://wiki2.dovecot.org/HowTo/ActiveDirectoryNtlm http://wiki2.dovecot.org/Authentication/Mechanisms/NTLM http://www.dovecot.org/list/dovecot/2008-December/035630.html http://www.dovecot.org/list/dovecot/2010-February/046763.html http://blog.al-shami.net/2008/05/freebsd-postfix-dovecot-and-active-directo… http://wiki2.dovecot.org/HowTo/PostfixAndDovecotSASL -- Here's some of my relevant configuration as I understand it: -- I've joined the computer to the AD domain. The wbinfo tests work fine: # wbinfo -t checking the trust secret for domain MYDOMAIN via RPC calls succeeded # doveconf -n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-358.11.1.el6.x86_64 x86_64 CentOS release 6.4 (Final) auth_debug_passwords = yes auth_mechanisms = plain ntlm login auth_use_winbind = yes auth_username_format = %Lu listen = * mbox_write_locks = fcntl passdb { driver = pam } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd } //////////////////// # postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix debug_peer_level = 7 html_directory = no inet_interfaces = all inet_protocols = ipv4 line_length_limit = 6144 mail_owner = postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man mydestination = $myhostname, localhost.$mydomain, localhost myhostname = srvsbsmtp05.mydomain.com newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES sample_directory = /usr/share/doc/postfix-2.6.6/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtpd_recipient_restrictions = permit_sasl_authenticated,reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot unknown_local_recipient_reject_code = 550 ///////////////////// # cat /etc/krb5.conf [logging] default = FILE:/var/log/krb5libs.log kdc = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log [libdefaults] default_realm = MYDOMAIN.COM dns_lookup_realm = true dns_lookup_kdc = true ticket_lifetime = 24h renew_lifetime = 7d forwardable = true [domain_realm] .mydomain.com = MYDOMAIN.COM mydomain.com = MYDOMAIN.COM //////////////////// system keytab: # klist -ke Keytab name: FILE:/etc/krb5.keytab KVNO Principal ---- -------------------------------------------------------------------------- 3 host/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (des-cbc-crc) 3 host/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (des-cbc-md5) 3 host/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (arcfour-hmac) 3 host/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (aes128-cts-hmac-sha1-96) 3 host/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (aes256-cts-hmac-sha1-96) 3 host/sbsmtpnv05(a)MYDOMAIN.COM (des-cbc-crc) 3 host/sbsmtpnv05(a)MYDOMAIN.COM (des-cbc-md5) 3 host/sbsmtpnv05(a)MYDOMAIN.COM (arcfour-hmac) 3 host/sbsmtpnv05(a)MYDOMAIN.COM (aes128-cts-hmac-sha1-96) 3 host/sbsmtpnv05(a)MYDOMAIN.COM (aes256-cts-hmac-sha1-96) 3 SBSMTPNV05$(a)MYDOMAIN.COM (des-cbc-crc) 3 SBSMTPNV05$(a)MYDOMAIN.COM (des-cbc-md5) 3 SBSMTPNV05$(a)MYDOMAIN.COM (arcfour-hmac) 3 SBSMTPNV05$(a)MYDOMAIN.COM (aes128-cts-hmac-sha1-96) 3 SBSMTPNV05$(a)MYDOMAIN.COM (aes256-cts-hmac-sha1-96) 5 smtp/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (des-cbc-crc) 5 smtp/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (des-cbc-md5) 5 smtp/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (arcfour-hmac) 5 smtp/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (aes128-cts-hmac-sha1-96) 5 smtp/sbsmtpnv05.mydomain.com(a)MYDOMAIN.COM (aes256-cts-hmac-sha1-96) //////////////////// Samba config: [global] workgroup = MYDOMAIN realm = MYDOMAIN.COM server string = Samba Server Version %v security = ADS kerberos method = system keytab log file = /var/log/samba/log.%m max log size = 50 printcap name = /dev/null domain master = No template shell = /bin/bash winbind separator = + winbind use default domain = Yes idmap config * : range = 10000-50000 idmap config * : backend = tdb printing = bsd cups options = raw print command = lpr -r -P'%p' %s lpq command = lpq -P'%p' lprm command = lprm -P'%p' %j

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