1978
sasldb2
# saslpasswd2 -c -u mail.example.com USERNAME
XXXXXXXXXXXXXXX
# sasldblistusers2
USERNAME@mail.example.com: userPassword
There are too many authentication mechanism against cyrus sasl
mech_list: PLAIN LOGIN CRAM-MD5 DIGEST-MD5 NTLM
Search your package repositories for more info.
In centos 6 you need to install an extra package for every auth mechanism.
## PLAIN and LOGIN authentication support for Cyrus SASL
yum -y install cyrus-sasl-plain
or
## CRAM-MD5 and DIGEST-MD5 authentication support for Cyrus SASL
yum -y install cyrus-sasl-md5
choosing encrypted password
/etc/sasl2/smtpd.conf
# ebal, Sat, 04 Oct 2014 19:11:31 +0300
# pwcheck_method: saslauthd
pwcheck_method: auxprop
auxprop_plugin: sasldb
mech_list: CRAM-MD5 DIGEST-MD5
# mech_list: PLAIN LOGIN CRAM-MD5 DIGEST-MD5 NTLM
# log_level: 7
Postfix
Change ownership on the sasl database
chown postfix:postfix /etc/sasldb2
Add SASL to postfix submission
https://balaskas.gr/wiki/postfix/submission/sasl
Add TLS to postfix submission
https://balaskas.gr/wiki/postfix/submission/TLS