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I'm really not sure what my issue is. I've checked several guides, and I am sure I have set this up correctly, including config fails, restarting the service, permissions etc. OS is Ubuntu Server.

When testing with testsaslauthd -u myemail@mydomain-p password

I only ever get: 0: NO "authentication failed"

My postfix.conf (comments deleted):

smtpd_sasl_auth_enable = yes
smtpd_sasl_type = cyrus
smtpd_sasl_path = smtpd
smtpd_sasl_local_domain = $mydomain
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
append_dot_mydomain = no
readme_directory = no
smtpd_use_tls=no
smtpd_relay_restrictions = permit_mynetworks defer_unauth_destination
myhostname = mydomain
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname localhost.$mydomain localhost $mydomain
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 172.16.0.0/16
mailbox_command =
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
mydomain = mydomain
home_mailbox = Maildir/

My smtp.conf for sasl

pwcheck_method:auxprop
auxprop_plugin: sasldb
mech_list: PLAIN LOGIN CRAM-MD5

My saslauthd config:

START=yes
DESC="SASL Authentication Daemon"
NAME="saslauthd"
MECHANISMS="sasldb"
MECH_OPTIONS=""
THREADS=5
OPTIONS="-c -m /var/run/saslauthd"

All permissions are correct and I have restarted the services to ensure. mail.warn shows the following:

warning: unknown[myip]: SASL LOGIN authentication failed: authentication failure

What can I do to troubleshoot?

  • Test the SASL Mechanism that your installation was compiled with or supports: saslauthd -v – ILMostro_7 Aug 14 '17 at 16:56

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