Centos Server Guide

Are you looking for a 'free (cost free) and simply "anti-spam or spam blocker solution for your organization to support multiple email domains

Are you looking for anti-spam solutions can be deployed in a production environment in less than 20 minutes?

ESVA Email Security Virtual Appliance (ESVA) is a FOSS-based anti-spam solutions created by Andrew MacLachlan in 2005. ESVA a pre-built virtual machine running on virtual strojevima.Najnovija ESVA version can run on VMware, running on Citrix XenServer, Microsoft Hyper-V and VMware platforms.

the development of applications by the station for almost two long years to the day after the release version of the 2058th I was so happy that the current version 2060 is not available. To download the latest version of the GD ESVA visit the official website.

ESVA main components are:

CentOS - Robust Red Hat clone operating system MailScanner - Anti-spam package for e-mail gateway system. MailWatch-web-based admin page for MailScanner Postfix - the e-mail SQLgrey - Greylisitng filtering Webmin - web-based admin page and CentOS Postfix admin ClamAV - Open Source antivirus clearinghouses Distributed Control (DCC) and Vipul's Razor - Bulk mail spam detection Pyzor - Spam detection network SpamAssassin - Famous spam filtering packages for the header, text analysis, Bayesian filtering DNS blocklists and filtering database FuzzyOCR - Content and properties of image filtering based on fuzzy logic MailGraph - Graphics Mail statistics tool for

Why use ESVA?

The advantage of using the ESVA:

free in price, robust system, filtering accuracy domain of the sender black list domain of the sender and the white-list quarantine and release a report (based on per user or per domain) easy to use and convenient.

I'm engaged in self-customized version of our ESVA DataCentre since 2007 and is still one of our best anti-spam solutions. Although, Bayesian filtering method takes time to build on spam or ham database. Overtime, ESVA on mail filtering becomes more effective to distinguish between ham and spam comparable to some commercial products.

We have 2 units ESVA deployed at Layer2 running our DataCentre to take care of more than 500 domains, and 10,000 e volume per hour. Our ESVA used for e-mail quarantine, anti-virus scanning, OCR and fuzzy Bayesian filtering.

However, several important features that I think the author must include :-

No SMTP authentication and LDAP integration No Subject Filtering No keyword filtering Invalid GIF and JPEG filter

Some of the above weaknesses can solve the script adaptation. However, I understand the feature of each pack and plug-in and file path. Currently, I'm making adjustments to the configuration and the FAQ and we hope that anyone using ESVA can benefit from it.

However, ESVA is one of the most effective and powerful FOSS-based spam solution that I have ever deployed. This will definitely help your organization to spam issues.