Postfix is an attempt to provide an alternative to the widely-used Sendmail program. Postfix attempts to be fast, easy to administer, and hopefully secure, while at the same time being sendmail compatible enough to not upset your users.
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This version contains a fix for CVE-2011-1720, which affects Postfix SMTP server configurations that use Cyrus SASL authentication. This defect was introduced with the Postfix SASL patch, and is present in all Postfix versions where the command "postconf mail_release_date" reports a value of 20000314 (March 14, 2000) or greater. Note that CVE-2011-1720 does not affect Postfix SMTP servers that use Dovecot SASL authentication. It also does not affect the common Postfix SMTP server configurations that use only Cyrus SASL mechanisms PLAIN and LOGIN.
