Tuesday, August 2, 2011

Can it Free Anti-Spam Software - ESVA Email Security Virtual Appliance (ESVA)



Are you wanting a 'Free (without charge ) and Easy' antispam? or spam blocker solution to your organization that support multiple email domains?

Are your buying anti-spam solution is often deployed inside of your production environment for under 20 min?

ESVA Email Security Virtual Appliance (ESVA) is really a FOSS-based anti-spam solution? designed by Andrew MacLachlan since year 2005. ESVA is actually a pre-built Virtual Appliance that is run on virtual machines. The modern version of ESVA can managed with VMWare, managed with Citrix XenServer, Microsoft Hyper-V and VMware platforms.

The healthy the required forms is actually stop for merely 2 long years within the next day the production of version 2058. I have been so happy that current version 2060 isn't available. To download the new version please click ESVA's GD official website.

The major products in ESVA are:

  • CentOS - Robust Red Hat-cloned Operating System


  • MailScanner - Anti-spam package for e-mail gateway systems.


  • MailWatch- Web-based? admin page for MailScanner


  • Postfix -? Email System


  • SQLgrey - Greylisitng Filtering


  • Webmin - Web-based? admin page CentOS and Postfix admin


  • ClamAV - Free antivirus


  • Distributed Checksum Clearinghouses (DCC)? & Vipul's Razor - Bulk Spam Mail detection


  • Pyzor - Spam detecting network


  • SpamAssassin? - Well-known spam filtering package for header,? text analysis, Bayesian filtering, DNS blocklists and filtering database


  • FuzzyOCR - Content and properties of images Filtering in accordance with fuzzy logic


  • MailGraph - Graphical Mail statistics tools

Why Cash in ESVA?

The benefit for using ESVA are:

  1. Free on price,


  2. robust system,


  3. filtering accuracy


  4. domain and sender black-listing


  5. domain and sender white-listing


  6. quarantine and release report (per user basis or per domain)


  7. easy to utilise and customized.

I've deployed self-customized version of ESVA in your datacentre since 2007 as well as being still our best anti-spam solutions. Although, Bayesian filtering method require chance to built on SPAM or HAM database. Overtime, ESVA's on mail filtering gets to be more effective to differentiate concerning the ham additionally, the spam can compare to some commercial products.

We have 2 units of ESVA deployed at layer2 running our datacentre to manage greater than 500 domains and 10, 000 level of email by the hour. Our ESVA may be used for e-mail quarantine, anti-virus scanning, fuzzy OCR and Bayesian filtering.

However, a small number of important features when i think mcdougal would include: -

  1. 鐕 SMTP Authentication or LDAP integration


  2. No Subject Filtering


  3. No Keyword Filtering


  4. Incorrect GIF and JPEG filtering

Some of your above-mentioned weakness are generally solved by scripts customization. However, I have to understand the feature associated with package and plug-in and file path. Current, I'm compiling FAQ and customization configuration and hope that anyone using of ESVA may be profit by it.

Nevertheless, ESVA belongs to the easiest and powerful FOSS-based spam solution I ever deployed. Its helps your company on spam issues.? /p>

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