Server-based software
Server-based software can run on your mail server or on a separate machine. It checks for e-mail from known spammers and filters messages based on e-mail headers, and transport information, and content.
ActiveState PerlMx v2.1
Works with: SMTP, Linux, Solaris, HP-UX
Notable features: LDAP integration. Pattern matching. Spam definitions. Real-time blackhole list and whitelists. Heuristic analysis of message content. Virus protection.
Clearswift MailSweeper for SMTP
Works with: Microsoft Exchange, SMTP
Notable features: Analyzes incoming and outgoing e-mail at the Internet gateway. Screens e-mails based on source, content, and destination. LDAP integration. Policy management for senders and recipients.
Clearswift MailSweeper for Exchange
Works with: Microsoft Exchange
Notable features: LDAP integration. Policy management for senders and recipients. Removes inappropriate attachments. Manages undesirable file types.
Clearswift MailSweeper for Domino
Works with: Lotus Domino
Notable features: LDAP integration. Policy management for senders and recipients. Removes inappropriate attachments. Manages undesirable file types.
Cloudmark SpamNet
Works with: Microsoft Outlook
Notable features: This free add-on for Microsoft Outlook runs in the background, and shares each user's spam with a global database that determines what messages the network blocks.
CMS Praetor for Lotus Domino
Works with: Lotus Domino
Notable features: Uses real-time blackhole lists to identify known spam domains (requires subscription to MAPS). Rules wizard permits construction of administrator-defined custom filters.
CMS Praetor for Microsoft Exchange Server
Works with: Microsoft Exchange
Notable features: Uses real-time blackhole lists to identify known spam domains(requires subscription to MAPS). Rules wizard permits construction of administrator-defined custom filters.
CMS Praetor for SMTP
Works with: SMTP
Notable features: Uses real-time blackhole lists to identify known spam domains (requires subscription to MAPS). Rules wizard permits construction of administrator-defined custom filters.
Elron IM Message Inspector
Works with: Lotus Notes, Microsoft Exchange
Notable features: Analyzes the context of messages and ranks their relevance. Built-in Web-based reporting. Anti-virus software available. (Download demo)
GFi MailSecurity for Exchange/SMTP 7
Works with: SMTP, Microsoft Exchange
Notable features: Content checking rules engine. Quarantines messages with macros. Approval of quarantined messages via moderator client or e-mail client.
GFi MailEssentials for Exchange/SMTP
Works with: SMTP, Microsoft Exchange
Notable features: Analysis of e-mail content and header information. Checks for domain validity. Archives inbound and outbound e-mail. Upgrade available with virus protection.
Lyris MailShield Server
Works with: Windows 2000, Solaris, Linux, FreeBSD
Notable features: Links to MAPS or ORBL. E-mail filter management via Web browser. Integrates with third-party anti-virus products.
Mail-Filters SpamCure
Works with: Windows 2000
Notable features: Mail filters. New spam signatures incorporated into filters. No anti-virus features.
Marshal MailMarshal
Works with: Lotus Notes, Microsoft Exchange, SMTP
Notable features: Archive unpacking: Scans multi-level .zip files. Supports MAPS. Usage reports. LDAP support. Supports third-party anti-virus products.
NAI WebShield SMTP
Works with: SMTP
Notable features: Remote management via SMTP client. Auto virus definition updates. Statistics on number of e-mails scanned, infected, and filtered for content.
SurfControl SuperScout E-mail Filter for SMTP/Exchange
Works with: SMTP, Microsoft Exchange
Notable features: Transmits non-essential e-mail after business hours. User-customizable keyword dictionaries. Remote administration.
Sybari Antigen 6.2 for Microsoft Exchange
Works with: Microsoft Exchange
Notable features: Multiple scan engine support. Scans multi-level .zip files. SMTP and M: drive scanning. Deleted files replaced with customizable text file.
Symantec Mail-Gear
Works with: SMTP
Notable features: Multithreaded SMTP mail handler. Supports Eudora and Netscape Mail. Supports e-mail scanning in Microsoft Word, Microsoft Excel, PowerPoint, text, and Adobe PDF.
Tumbleweed Secure Mail (MMS)
Works with: SMTP
Notable features: Filters messages based on end-user or domain address, or other criteria. Scans content of inbound and outbound messages. Strips portions of outbound message header.
