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edotan
Asked: 2015-08-06 04:02:27 +0800 CST

postfix error: 535 5.7.8 Error: authentication failed: authentication failure

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I need to connect to Dyn mail relay and I'm using their KB.

I'm trying to connect to my postfix server with telnet to port 25.

This is the 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 = 2
debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5
html_directory = no
inet_interfaces = all
inet_protocols = all
mail_owner = postfix
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = $myhostname, localhost.$mydomain, localhost
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.10.1/README_FILES
relayhost = smtp.dynect.net:25
sample_directory = /usr/share/doc/postfix-2.10.1/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options =
unknown_local_recipient_reject_code = 550

/var/log/maillog

Aug  6 05:52:09 jira postfix/postfix-script[14415]: stopping the Postfix mail system
Aug  6 05:52:09 jira postfix/master[13461]: terminating on signal 15
Aug  6 05:52:11 jira postfix/postfix-script[14508]: starting the Postfix    mail system
Aug  6 05:52:11 jira postfix/master[14510]: daemon started -- version 2.10.1, configuration /etc/postfix
Aug  6 05:53:46 jira postfix/smtpd[14514]: connect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 05:58:56 jira postfix/smtpd[14514]: timeout after AUTH from confluence.radwarecloud.com[10.65.60.22]
Aug  6 05:58:56 jira postfix/smtpd[14514]: disconnect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:15:28 jira postfix/smtpd[15079]: connect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:15:46 jira postfix/smtpd[15079]: lost connection after UNKNOWN from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:15:46 jira postfix/smtpd[15079]: disconnect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:15:47 jira postfix/smtpd[15079]: connect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:17:12 jira postfix/postfix-script[15125]: stopping the Postfix mail system
Aug  6 12:17:12 jira postfix/master[14510]: terminating on signal 15
Aug  6 12:17:14 jira postfix/postfix-script[15218]: starting the Postfix mail system
Aug  6 12:17:14 jira postfix/master[15220]: daemon started -- version 2.10.1, configuration /etc/postfix
Aug  6 12:17:24 jira postfix/smtpd[15223]: connect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:18:25 jira postfix/smtpd[15223]: lost connection after AUTH from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:18:25 jira postfix/smtpd[15223]: disconnect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:18:26 jira postfix/smtpd[15223]: connect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:19:09 jira postfix/postfix-script[15309]: stopping the Postfix mail system
Aug  6 12:19:09 jira postfix/master[15220]: terminating on signal 15
Aug  6 12:19:11 jira postfix/postfix-script[15401]: starting the Postfix mail system
Aug  6 12:19:11 jira postfix/master[15403]: daemon started -- version 2.10.1, configuration /etc/postfix
Aug  6 12:19:18 jira postfix/smtpd[15406]: connect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:24:24 jira postfix/smtpd[15406]: timeout after AUTH from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:24:24 jira postfix/smtpd[15406]: disconnect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:28:55 jira postfix/postfix-script[15438]: stopping the Postfix mail system
Aug  6 12:28:55 jira postfix/master[15403]: terminating on signal 15
Aug  6 12:28:57 jira postfix/postfix-script[15529]: starting the Postfix mail system
Aug  6 12:28:57 jira postfix/master[15531]: daemon started -- version 2.10.1, configuration /etc/postfix
Aug  6 12:29:03 jira postfix/smtpd[15534]: connect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:30:33 jira postfix/postfix-script[15559]: stopping the Postfix mail system
Aug  6 12:30:33 jira postfix/master[15531]: terminating on signal 15
Aug  6 12:30:34 jira postfix/postfix-script[15651]: starting the Postfix mail system
Aug  6 12:30:34 jira postfix/master[15653]: fatal: /etc/postfix/master.cf: line 36: no valid IP address found: smtp
Aug  6 12:30:35 jira postfix/master[15652]: fatal: daemon initialization failure
Aug  6 12:30:36 jira postfix/postfix-script[15654]: fatal: mail system startup failed
Aug  6 12:31:46 jira postfix/postfix-script[15757]: starting the Postfix mail system
Aug  6 12:31:46 jira postfix/master[15759]: daemon started -- version 2.10.1, configuration /etc/postfix
Aug  6 12:32:01 jira postfix/smtpd[15762]: connect from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:37:10 jira postfix/smtpd[15762]: timeout after AUTH from confluence.radwarecloud.com[10.65.60.22]
Aug  6 12:37:10 jira postfix/smtpd[15762]: disconnect from confluence.radwarecloud.com[10.65.60.22]

I see that I'm getting the following error in /var/log/messages:

 Blockquote saslauthd[11378]: do_auth         : auth failure: [user=XXX] [service=smtp] [realm=XXX.com] [mech=pam] [reason=PAM auth error]

In /var/log/maillog I get:

  SASL login authentication failed: authentication failure

what am I forgetting?

centos

2 Answers

  1. You need to know the differences between smtpd and smtp in Postfix. In short, smtpd is the SMTP server that receive the email and smtp is the SMTP client that send the email.

    Based on the article linked above, you need to add the following three parameters into main.cf:

    smtp_sasl_auth_enable=yes 
smtp_sasl_password_maps=hash:/etc/postfix/sasl_passwd 
smtp_sasl_security_options

    Unfortunately, postconf -noutput is different:

    smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options =

    Do you notice the difference between those two snippets? Great. So fix the typo and your problem should be resolved.

    • 4

  2. I had this error symptom when migrating from Ubuntu 10.04 to 14.04. Once I changed smtpd_sasl_type from cyrus to dovecot it worked. You have to restart the postfix service after the change.

    • 0