Mail Storage Guard
Protect your server from spam & attacks
Platforms: Windows XP Size: 1.70 M Cost: $69
Buy full version
Trial version
Publisher: MAPILab Ltd. 
Descriptions
Mail Storage Guard:
Mail Storage Guard is an extension for Microsoft Exchange 2000/5.5 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 its to postmaster; and many other features.
| 
