Mail Storage Guard is an extension for Microsoft Exchange 2000/2003 and IIS SMTP servers, designed to protect your mail server from spam, prevents mail relaying, mail bomb and NDR attacks. Support extended blacklists with wildcards; public DNS blacklists (ORDB, SPEWS, SPAMCOP and others); can reject all "misaddressed" mail (recipient not listed in Active Directory) at SMTP level or point it towards your postmaster; as well as many other features.

PostMaster Enterprise is the standard bearer of the IQuinox platform - a framework that provides user customizable rules to introduce process and measurability into the Internet communication channels that an organization uses. The Robot Service of PostMaster Enterprise is an extension of this rules framework into this application.

PostMaster Express provides below plugins:

AvAc- the anti-virus application that integrates with PostMaster to scan all incoming, outgoing and internal mail.

GatePass- the antispam solution that combines multiple antispam methodologies in a layered sequence using a spam detection engine to provide world-class spam detection results.

SurfConsole- the proxy server that provides internet browsing for all employees over a single connection.