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Declude Interceptor offers a reliable, high capacity mail system gateway that combines greylisting, tarpitting, and our proprietary sender reputation services to immediately reduce your spam load by 90%-95%  with virtually zero administration, no training, no filtering, and no false positives.

 
Declude Interceptor is a fully self contained, stand alone, SMTP Gateway Server for Microsoft Windows servers. It installs between your mail server and the Internet and handles all incoming traffic, significantly reducing spam while protecting your mail server from all forms of email attacks, backscatter,  and other abuses.

Declude Interceptor will IMMEDIATELY reduce the load on your mail server by 80-90%!

Declude Interceptor offers numerous benefits designed to safely and efficiently handle high volumes of e-mail.
 Easy to install, and remote installation is available.
 100% transparent to end users.
 Works with all SMTP based mail servers including MS and Linux based systems.
 Works with any anti-spam or anti-virus applications you may already use.
 Requires no modifications to your existing mail server setup.
 No disruptions or training required.
 Built in load balancing and failover capabilities.
 Fully scalable. Supports clustered installations.
 Maintains copies of all email for Sarbanes-Oxley Act compliance.
 No nonsense licensing with no per mailbox/domain limitations.
 Customized Header information - Add your own information to email headers
 Flexible configuration for total control - More control than any other system on the market today
 Weighting System - Reduces false positives by requiring multiple tests to fail
 

ANTI-SPAM
 Header Analysis - Looks for broken and forged E-mail headers
 Works on multiple hops - Skip over servers that you do not want to check
 Geolocation - Lets you block E-mail based on the country of origin
 Anti-filter Detection - Detects tricks spammers use to bypass filters
 SMTP header verification - For Spam signatures and abnormalities
 Per-domain configuration - Specific rules for a domain
 Per-user configuration - Specific rules for a use
 Anti-spoofing for email messages - Set up rules to stop spoofed emails
 Heuristic spam detection
 Detects Image based spam
 Ban specific Character sets - Block foregn character sets like Chinese, Korean
 

WHITELIST/BLACKLIST
 Custom Whitelists - Whitelist checking including trusted sender/ email address / IP / ReversDNS / Token phrases and more...
 Custom Blacklists - Lets you block IPs and return addresses of your choice
 

FILTERS
 Support for Regular Expression Filtering - Supports PCRE Regular Expressions, Lets you add your own keywords and phrases to detect spam
 Email keyword filtering in specific location of the email - Headers / From / To / Subject / Body / IP and more
 

AUTHENTICATION
 Supports User Authentication - Autowhitelist authenticated users
 Supports SPF
 Supports Habeas
 Supports Bondedsender
 Supports Sendscore
 

EMAIL ACTIONS
 ALERT- Create a customized bounce Message
 ATTACH- Send the spam on as an attachement ("SpamHider")
 COPYFILE- Copy the email file to a different location
 COPYTO- Copy the email to a different address
 DELETE- Delete
 FOOTER- Add warning to the Footers
 HEADER- Add warning to the headers
 HOLD- Quarentine the message
 MAILBOX- Send to users junkmail folder
 ROUTETO- Reroute to a different email address
 SUBJECT- Tag the subject line
 WARN- Add warning to the headers
 

SPAM TESTS

 DNS-based- There are over 50 different "ip4r" format DNS tests available
 IP4R (RBL) Lookups - Well-known IP-based spam tests, such as SpamCop
 RHSBL (Domain) Lookups - Public domain-based spam tests
 DNSBL (Other) - Public spam tests other than IP- or domain-based
 TXT DNS record lookups- Determines the reason the test faile
 BADHEADERS- Checks the E-mail for illegal headers that are common in spam, but not common in legitimate E-mail.
 BASE64- Catch E-mail that uses MIME "base64" encoding for text or HTML segments.
 BCC- Catch E-mail that has a lot of local recipients that are not listed in the E-mail headers.
 BITMASK - External test that allows multiple test results to be returned by a single value
 CATCHALLMAILS- Used to keep a copy of either all outbound or inbound emails
 CMDSPACE- Looks for a technical violation of the RFCs.
 COMMENTS- Catches spam that uses HTML comments to bypass filters
 CONTSPACES- See if an E-mail has a specific number of continuous spaces in the subject
 DOW- Test to see if an E-mail arrived during a specific day of the week.
 FROMNOMATCH- Compare sender of the message envelope and to the sender specified in the header
 HELOBOGUS- Detect bogus (non-RFC-compliant) "HELO/EHLO" data
 HOUR- Test to see if an E-mail arrived during a specific range of hours.
 MAILFROM- Checks the SMTP envelope "Mail From: for the real sender
 NONENGLISH- Tests to see if the E-mail that is in languages other than English
 PERCENT- Checks a method that can be used by spammers to bypass closed relays
 REVDNS- Check to see if the remote mail server (or client) has a reverse DNS entry
 ROUTING- Analyze the route that an E-mail takes, and look for highly inefficient routing that is common in spam.
 SIZE- Checks the message size
 SPAMDOMAINS- Catch E-mail that is not coming from a mail server that it should be coming from
 SPAMHEADERS- Checks the E-mail for headers that are common in spam, but not common in legitimate E-mail
 SUBJECTCHARS- Catch E-mail that has a certain number of characters in the subject.
 SUBJECTSPACES- Catch E-mail that has a certain number of spaces in the subject.
 

EVA - ANTI-VIRUS
 Integrated Commercial grade Virus Scanner- Includes AVG by Grisoft with all updates
 Improve detection with support for multiple virus scanners- Supports up to 5 additional 3rd party scanners like McAfee, Sophos, F-Prot and more
 Multiple Virus Signature options- Specify AV return codes to be used
 Anti phishing Anti phishing - Using Anti-Phising Signatures with CalmAV
 Improve performance with pre-scanning of HTML files
 File blocking according to: extension - MIME or binary structure
 Help catch new undetected viruses with unique advanced scanning methods
 Block encrypted compressed files - Blocks encrypted ZIPS and RAR files
 Detects sophisticated polymorphic (code changing), stealth and encrypted viruses
 Heuristic detection, analysis and blocking of suspicious worms / Trojan executable files
 Supports MIME, uuencode, BinHex, TNEF formats
 On-access scanner support - Can function with on-access scanners
 Report file parsing - Identify the virus being quarentined
 Detect vulnerabilities - Stops viruses your Anti-Virus cannot detect
 Specify extensions to skip - Skip extensions like .txt .gif
 Specfiy extensions to ban - Ban extensions like .exe .pif .cmd
 CLSID banning
 Option to limit scanning to just incoming or just outgoing mail
 Limit number of simultaneous AV processes
 Specify domains not to scan
 Specify users to scan or not scan
 

SMTP GATEWAY

 Declude Interceptor employs a combination of extremely effective techniques to identify and stop spammers before their message is even fully received.
 Fully automatic Backscatter (NDR) protection. Automatically kicks in when excessive NDR traffic is detected to any account.
 Proprietary MXRate Sender Reputation Database. MXRate is a system that analyzes over 25 million spam messages daily to provide real time reporting to Declude Interceptor servers on the message sending habits of any particular sender.
 A unique implementation of a procedure called Greylisting. Our system avoids the typical pitfalls of other greylisting systems by only imposing greylisting if certain user defined criteria are met.
 Variable time "Tarpitting" is also employed to effectively discourage spammers and slow down attacks.
 Numerous verification systems allow flexible recipient checking, sender country testing, sender reputation lookup, DNSBL support, dictionary attack prevention, relay protection, authentication, "port 587" support, reverse DNS lookup and dozens of other techniques.
 Message/header progressive scanning system with user defined penalties and regular expression support.
 

We guarantee that Declude Interceptor will provide an immediate drop in overall mail server load by 80 to 90%, and an immediate drop in spam of at least 95%, with zero administration, no user complaints, no false positives, and no danger of missing important e-mails.
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Declude a division of DNSstuff Enterprise.



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