Postfix returning “no SASL authentication mechanisms” despite mySQL auth config being seemingly valid-Collection of common programming errors
I am trying to set up a mail server that has multi domain support using Postfix+Dovecot+mySQL. I was following this guide.
I seem to have everything set up and the server is sending the dovecot SSL cert (throwing a cert exception dialog in my client) however mail is not sending or receiving.
/var/log/mail_err returns this postfix error:
Connect to private/auth failed: Connection refused
/var/log/mail.log is returning a bit more detail:
Sep 25 19:33:58 localhost postfix/postscreen[11483]: CONNECT from [MYIPADDRESS]:58837 to [MYSERVERIPADDRESS]:25
Sep 25 19:33:58 localhost postfix/postscreen[11483]: PASS OLD [MYIPADDRESS]:58837
Sep 25 19:34:01 localhost postfix/smtpd[11486]: connect from MYHOSTMASK[MYIPADDRESS]
Sep 25 19:34:01 localhost postfix/smtpd[11486]: warning: SASL: Connect to private/auth failed: Connection refused
Sep 25 19:34:01 localhost postfix/smtpd[11486]: fatal: no SASL authentication mechanisms
Sep 25 19:34:02 localhost postfix/master[4556]: warning: process /usr/lib/postfix/smtpd pid 11486 exit status 1
Sep 25 19:34:02 localhost postfix/master[4556]: warning: /usr/lib/postfix/smtpd: bad command startup -- throttling
Sep 25 19:34:02 localhost postfix/postscreen[11483]: CONNECT from [MYIPADDRESS]:58839 to [MYSERVERIPADDRESS]:25
Sep 25 19:34:02 localhost postfix/postscreen[11483]: PASS OLD [MYIPADDRESS]:58839
Sep 25 19:35:02 localhost postfix/smtpd[11780]: connect from MYHOSTMASK[MYIPADDRESS]
Sep 25 19:35:49 localhost dovecot: auth-worker: mysql(127.0.0.1): Connected to database mailserver
Sep 25 19:35:49 localhost dovecot: imap-login: Login: user=, method=PLAIN, rip=MYIPADDRESS, lip=MYSERVERIPADDRESS, mpid=11804, TLS
Sep 25 19:38:07 localhost postfix/anvil[11379]: statistics: max connection rate 1/60s for (submission:MYIPADDRESS) at Sep 25 19:28:57
Sep 25 19:38:07 localhost postfix/anvil[11379]: statistics: max connection count 1 for (submission:MYIPADDRESS) at Sep 25 19:28:57
Sep 25 19:38:07 localhost postfix/anvil[11379]: statistics: max cache size 2 at Sep 25 19:28:57
Sep 25 19:39:02 localhost postfix/smtpd[11780]: lost connection after UNKNOWN from MYHOSTMASK[MYIPADDRESS]
Sep 25 19:39:02 localhost postfix/smtpd[11780]: disconnect from MYHOSTMASK[MYIPADDRESS]
Sep 25 19:39:02 localhost postfix/smtpd[11945]: connect from MYHOSTMASK[MYIPADDRESS]
Sep 25 19:39:03 localhost postfix/smtpd[11945]: warning: SASL: Connect to private/auth failed: Connection refused
Sep 25 19:39:03 localhost postfix/smtpd[11945]: fatal: no SASL authentication mechanisms
Sep 25 19:39:04 localhost postfix/master[4556]: warning: process /usr/lib/postfix/smtpd pid 11945 exit status 1
Again, I am not receiving or able to send mail. It does seem that postfix is crashing, what with the premature exit. I’m out of ideas and I’d really prefer not to wipe everything out and start the setup all over again. Any thoughts? This is a VPS running on Ubuntu 12.04
EDIT
postconf -n output:
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
inet_interfaces = all
inet_protocols = ipv4
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
mydestination = localhost
myhostname = lightningcoders.com
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
myorigin = /etc/mailname
readme_directory = no
recipient_delimiter = +
relayhost =
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_path = private/auth
smtpd_sasl_type = dovecot
smtpd_tls_auth_only = yes
smtpd_tls_cert_file = /etc/ssl/certs/dovecot.pem
smtpd_tls_key_file = /etc/ssl/private/dovecot.pem
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf
virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
virtual_transport = lmtp:unix:private/dovecot-lmtp
postfix master config:
root@orion:~# cat /etc/postfix/master.cf | grep ^smtp
smtp inet n - - - - smtpd
smtp inet n - - - 1 postscreen
smtpd pass - - - - - smtpd
smtp unix - - - - - smtp
EDIT 2:
root@orion:/home/jknipp# ls -ld /var/spool/postfix/private/auth
srw-rw-rw- 1 postfix postfix 0 Sep 25 02:38 /var/spool/postfix/private/auth
As for the dovecot config:
2.0.19: /etc/dovecot/dovecot.conf
# OS: Linux 3.9.3-x86_64-linode33 x86_64 Ubuntu 12.04.3 LTS ext3
auth_mechanisms = plain login
mail_location = maildir:/var/mail/vhosts/%d/%n
mail_privileged_group = mail
passdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
protocols = imap pop3 lmtp
ssl = required
ssl_cert =