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Procmail 6 SpamAssassin 9
Anti-Spam Server Software 31 Windows 42
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Activator MailActivator Mail
Virus scanning and spam prevention based on blacklists and user feedback.
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AppRiver Spam FilteringAppRiver Spam Filtering
An email security company offering hosted spam and virus protection and a scanning engine especially for OEMs.
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ASSPASSP
Anti-Spam SMTP Proxy implementing platform independent email filtering services.
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BopSpamBopSpam
Online POP3 bayesian filtering service.
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ClapfClapf
An open source email content filter application. Clapf is a modular statistical antispam application with an interface to popular antivirus programs.
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CleanMailOnlineCleanMailOnline
Online Spam and Virus Filtering, filter before mail reaches your computer.
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CleanMyMailboxCleanMyMailbox
Whitelist-based service that automatically "cleans" mailboxes of unwanted email multiple times per hour.
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CruelMailCruelMail
Provides spam-proof email accounts. Only allows email from addresses in whitelist. Charges a fee for others to reach the customer's mailbox.
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DicontasDicontas
UK based provider of email filtering, email monitoring and centralized administration services for business users.
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Distributed Checksum ClearinghouseDistributed Checksum Clearinghouse
System of clients and servers that collect and count checksums of email messages in order to detect and filter bulk UCE.
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The Email LaundryThe Email Laundry
Spam filtering service to block spam and viruses by domain.
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E-Mail MagicianE-Mail Magician
Automates filter, mailbox, and nickname creation for Eudora Macintosh. Filters on more than 1,000 spam characteristics.
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Email SolutionsEmail Solutions
UK firm specializing in hosted spam and virus protection through MX redirection. Subscription based. A 30 day free trial is offered.
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Email SystemsEmail Systems
Fully managed service which filters viruses, worms and malicious macros and spam. Firm with offices in UK, France and Sweden.
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FakeMXFakeMX
Providing a service to temporarily reject mail directed at low priority servers.
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FilterspamFilterspam
Spam filter service designed to protect children from junk emails.
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HabeasHabeas
Focuses on identifying, classifying, tagging and monitoring legitimate email.
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KatharionKatharion
Provides spam and virus filtering services that keep unwanted mail off the network.
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MailArmoryMailArmory
Spam and virus defense for businesses and service providers.
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MailControlMailControl
Spam filtering protection for your corporate e-mail network.
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MailFilterProMailFilterPro
Web-based spam and virus filtering services for small business.
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MailPoliceMailPolice
Managed mail service with parental controls, POP/IMAP and Webmail.
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MailprotectorMailprotector
Hosted Spam filtering service. 30 day trial. No hardware, no software required. Also offers POP3, web and Exchange hosting.
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MailshellMailshell
Offers protection against spam, combined with personalization and privacy for individual email users.
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MailShieldMailShield
Australian company offers a managed service with protection from viruses, spam, malware, phishing and unwanted content.
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MessagecleanerMessagecleaner
Remove viruses and spam mail before they reach your computer.
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MIMEShieldMIMEShield
Runs as Domino server task, No template customizations, supports blacklists/whitelists, Spam email categorization, Electronic fingerprinting, Supports multiple Maps/RBL blacklists, Auto whitelist generation on outbound SMTP traffic.
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MX ForceMX Force
Enables VARs, OEMs, and ISPs to provide world-class managed email security services.
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MX LabMX Lab
A Belgium based company that blocks virus threats and unwanted emails through MX redirection. Also provides archiving and backup services.
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MX PoliceMX Police
Managed anti-spam, virus and malware protection.
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MXLogicMXLogic
Protects your entire domain from spam and viruses. No software to install or maintain.
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NuXo TechnologiesNuXo Technologies
Provides redundant managed email filtering services: protection against spam, virus and failure without changes to the existing installation.
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Online Spam SolutionsOnline Spam Solutions
Managed spam blocker and filtering service for small businesses. Blocks spam and viruses through MX redirection. A 30 day free trial is offered.
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Peer-to-PeerPeer-to-Peer
Anti-Spam gateway which filters out spam and viruses for an entire domain. A 30-day free trial is offered.
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Prolateral Consulting LtdProlateral Consulting Ltd
UK based anti-spam and anti-virus filtering plus several other internet security services.
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PyzorPyzor
Open source collaborative spam filtering system using digests of messages to identify spams.
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RealmailonlyRealmailonly
Email Spam filtering service for businesses. Mailboxes available.
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Red CondorRed Condor
Stops spam before it reaches your network. Managed spam filtering service blocks spam, viruses, spyware, and phishing schemes. A 30 day free trial is offered.
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Remote Anti SpamRemote Anti Spam
A hosted anti spam filtering service providing simple, anti spam, phishing and virus protection.
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RMX - SMTP anti-forgery protocolRMX - SMTP anti-forgery protocol
Filtering protocol verifying the sender address through authorization records made available in DNS to prevent address forgery.
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SecurenceSecurence
Managed spam service offering Anti Spam and Anti Virus filtering technologies.
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Sender Policy Framework (SPF)Sender Policy Framework (SPF)
Framework for publishing information through DNS describing a list of ip addresses allowed to send emails from a specific domain.
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SODA3SODA3
Mobile email filtering service for POP3. Filters your view of your mailbox so you only see email from important senders on your mobile device.
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Sophos PureMessageSophos PureMessage
Email management solution that provides full control over security and usage of corporate email systems.
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Spam Arrest, LLCSpam Arrest, LLC
POP3 service that blocks spam using sender verification methods.
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Spam CopSpam Cop
Spam reporting service.
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The Spam EaterThe Spam Eater
Checks your existing POP3 email account every ten minutes and filters spam and viruses. A 30 day free trial is offered.
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Spam Filtering for Mail ExchangersSpam Filtering for Mail Exchangers
Document offers detailed discussion on how to filter junk mail in incoming SMTP transactions.
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Spam Manager ProfessionalSpam Manager Professional
Spam Manager Professional is a windows based gateway filter for SMTP email servers. This filter uses DNSBL Servers to reject junk or spam mail coming from blacklisted servers.
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Spam Safe MailSpam Safe Mail
Network email scanning and filtering service that removes junk emails at the network level before they are delivered to your mailbox.
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Spam SoapSpam Soap
Managed spam service featuring message store/forward, message archiving, and administration at both end user and domain levels.
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SpamButcherSpamButcher
Fuzzy-logic software based anti-spam filter for Windows systems.
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SpamCerbereSpamCerbere
Offers spam protection that doesn't require any installation. Based on a challenge-response system. Free service.
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0Spam.com0Spam.com
Free antispam service for pop, Yahoo, and Hotmail accounts supporting multiple languages.
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SpamDrainSpamDrain
Swedish company filters individual POP3 and IMAP accounts as well as entire domains. No software installations required. Offers a 30-day trial.
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SpamFilter for ISPSpamFilter for ISP
Proxy software for incomming mail.
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SpamStopsHereSpamStopsHere
An email filtering service for businesses or individual domains. 30 day trial offered.
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SpamTrapSpamTrap
Australian POP3 email spam filtering service requiring no software.
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Vipul's RazorVipul's Razor
Collaborative spam filtering network allowing users to report and filter out matching spam.
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