from http://nico.schottelius.org/notizbuch-blog/archive/2008/10/07/solution-for-postfix-with-postgres-sasl-error-authentication-failed-authentication-failure Signed-off-by: Nico Schottelius <nico@ikn.schottelius.org>
		
			
				
	
	
		
			67 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			67 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
[[!meta title="Solution for Postfix with Postgres: SASL error: authentication failed: authentication failure"]]
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[[!meta date="2008-10-07"]]
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It took me some hours to find the origin of the error,
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so I'll documentate some hints here for you.
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I am running postfix with postgresql on Debian.
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But it should apply more or less to MySQL and FreeBSD and other OS, too.
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Some error messages you may have seen:
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    Oct  7 18:01:38 tee postfix/smtpd[7741]: warning: SASL authentication failure: no secret in database
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    Oct  7 18:01:38 tee postfix/smtpd[7741]: warning: ikn.inf.ethz.ch[129.132.130.3]: SASL DIGEST-MD5 authentication failed: authentication failure
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or on the client side postfix:
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    Oct  7 17:56:39 ikn postfix/smtp[30807]: 777134113A: to=<nicosc@inf.ethz.ch>, relay=mx3.schottelius.org[77.109.138.221]:25, delay=0.08, delays=0.02/0/0.06/0, dsn=4.7.8, status=deferred (SASL authentication failed; server mx3.schottelius.org[77.109.138.221] said: 535 5.7.8 Error: authentication failed: authentication failure)
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Some hints and at the end my final solution:
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* make sure postfx can connect to the postgresql database
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* check one, two and three times that ***pg_hba.conf*** is right
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* try to login manually via psql
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* check postgresql logs, raise debuglevels,
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  add ***log_connections = on*** and ***log_statement = 'all'***
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* make sure you do not have whitespaces at the end of
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  ***/etc/postfix/sasl/smtpd.conf*** (that was my problem here, due to copy and paste!)
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* You are missing ***sasl/smtpd.conf***, if you get the following infamous error (i.e. cyrus-sasl has no config found):
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    warning: SASL authentication problem: unable to open Berkeley db /etc/sasldb2: No such file or directory
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For reference, here are the important parts of my working configuration:
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***main.cf:***
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    smtp_use_tls = yes
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    smtp_tls_note_starttls_offer = yes
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    smtpd_use_tls=yes
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    smtpd_tls_cert_file=/etc/ssl/mx3.schottelius.org.crt
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    smtpd_tls_key_file=/etc/ssl/mx3.schottelius.org.key
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    smtpd_sasl_auth_enable = yes
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    smtpd_sasl2_auth_enable = yes
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    smtpd_sasl_security_options = noanonymous
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    broken_sasl_auth_clients = no
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    smtpd_tls_auth_only           = yes
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    #smtpd_sasl_path = smtpd # not needed
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    smtpd_client_restrictions = permit_mynetworks
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                                permit_sasl_authenticated
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***sasl/smtpd.conf:***
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    pwcheck_method: auxprop
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    auxprop_plugin: sql
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    mech_list: plain login cram-md5 digest-md5
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    sql_engine: pgsql
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    sql_hostnames: 127.0.0.1
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    sql_user: postfix
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    sql_passwd: thepassword
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    sql_database: mail
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    sql_select: select password from mailboxes where name='%u' and domain='%r' and smtp_enabled=1
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[[!tag unix net]]
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