Configuring Postfix SMTP AUTH
Configuring SMTP AUTH in Postfix is pretty straightforward now that you have managed to set up and configure Cyrus SASL. The first thing you need to do is to check if Postfix was built to support SMTP authentication. Use the ldd utility to check if the Postfix smtpd daemon has been linked to libsasl:
# ldd /usr/libexec/postfix/smtpd | grep libsasl
libsasl2.so.2 => /usr/lib/libsasl2.so.2 (0x00002aaaabb6a000)
If you don't get any output, you will probably have to rebuild Postfix. Read the SASL_README from the Postfix README_FILES directory to get detailed information on what you must include in the CCARGS and AUXLIBS statements.
Preparing the configuration
Once you've verified that Postfix supports SMTP AUTH, you need ...
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