ANNOUNCE: BarricadeMX is released
Ken A
ka at pacific.net
Tue May 29 22:43:23 IST 2007
Very impressive feature list. Good luck with the new product!
Thanks,
Ken Anderson
Pacific.Net
Julian Field wrote:
> Fort Systems Limited is proud to introduce its newest flagship software,
> BarricadeMX.
>
> Featuring a new level of spam filtering which rejects most of the spam
> before it's even accepted for delivery, BarricadeMX is the top of the
> line anti-spam filtering application.
>
> BarricadeMX was designed to complement MailScanner and SpamAssassin for
> high volume sites and / or sites which require very accurate spam
> detection. BarricadeMX was jointly developed by Fort Systems Ltd and
> SnertSoft to more efficiently block spam at the MTA level during the
> initial SMTP conversation. BarricadeMX can be installed with
> MailScanner, any other MTA or placed in front of any existing anti-spam
> solution.
>
> Since this has been a very active recent topic on the MailScanner list
> we hope you will find this information to be useful. A quick overview of
> the product follows and more information regarding BarricadeMX can be
> found at www.fsl.com or www.snertsoft.com.
>
> BarricadeMX is a new lightweight, small footprint computer-based
> anti-spam application. It is
> designed as an SMTP port 25 proxy, filtering and forwarding mail to one
> or more local or remote mail transfer agents. BarricadeMX supports a
> variety of well blended anti-spam filtering tests that can be
> individually enabled or disabled according to the rigors of the
> postmaster's local filtering policy. Most of these tests are optional
> and several are configurable by Domain. BarricadeMX can also set limits
> on message size by sender, recipient, domain, IP address and IP address
> ranges.
>
> The application itself is a small (4 MB resident memory), lightweight,
> multi-threaded C program. Much more efficient than the typical MTA, it
> can gracefully handle many simultaneous incoming connections. A single
> CPU system has handled 1018 concurrent SMTP client connections without
> failing or losing any legitimate mail. Many servers that are in
> production routinely handle 200 to 300 incoming simultaneous connections
> while maintaining low CPU utilization.
>
> BarricadeMX may be configured to run on multiple gateways which share
> multicast or unicast caches. These caches provide a fast, simple, and
> efficient means to share cache updates across multiple gateways on the
> same network segment or back and forth to a set of remote hosts. Both
> the multicast and unicast caches use a broadcast-and-correct model and
> support IPv4 and IPv6.
>
> By rejecting messages with a 550 error at the MTA level during the
> initial SMTP conversation, valid senders should receive a rejection
> notice letting them know that their email was not accepted for delivery
> and the reason for the rejection. Since this notice is sent directly to
> the server trying to deliver the message, there is no chance this
> feature being used in a “reflected spam” attack. The rejection notice
> may also be customized for individual sites to let the recipient of the
> bounce know who to contact to correct the problem.
>
> BarricadeMX is currently available only for Linux Red Hat and CentOS and
> OpenBSD operating systems. Ports to FreeBSD, SuSE and Solaris will be
> available soon with ports to Microsoft and Mac OS X in the planning stage.
>
> BarricadeMX is supplied as an rpm install for Linux and it is configured
> and managed using a simple web interface or by using text configuration
> files. For FreeBSD it is installed using pkg_add and configured by using
> text configuration files.
>
> And finally here are the results from one of our beta sites. Before
> installing BarricadeMX this site was running 15 very expensive PC
> anti-spam gateways which were barely able to handle the load. There were
> long delays caused by a load of approximately 2 million total messages
> per day for +1,800 domains. Peak connection attempts typically reached
> +100,000 connections per hour.
>
> The 15 PC gateways have now been replaced be three Sun 2100’s with
> single Dual-Core AMD Opteron 1210 processors and 4 GB of memory running
> the CentOS 4.x x86_64 operating system, BarricadeMX and a typical
> MailScanner anti-spam installation. Gateway 1 is running BarricadeMX, a
> typical MailScanner / SpamAssassin installation and MailWatch. It is
> also the Gateway cluster’s log host, web server and MailWatch database
> server. Gateways 2 and 3 are running BarricadeMX and a typical
> MailScanner / SpamAssassin installation.
>
> And here are recent statistics from this beta site:
>
> Gateway 1
>
> Gateway 2
>
> Gateway 3
>
> Site Totals
>
> Delivery Attempts
>
> 4,052,718
>
> 15,067,573
>
> 3,719,411
>
> 22,839,702
>
> Accepted messages
>
> 89,999
>
> 177,359
>
> 53,705
>
> 321,063
>
> Accepted messages
>
> 2.22%
>
> 1.18%
>
> 1.44%
>
> 1.61%
>
> Connections per day
>
> 579,160
>
> 747,604
>
> 532,078
>
> 1,858,842
>
> Max Simultaneous Connections
>
> 506
>
> 506
>
> 506
>
> 506
>
> Process Age (seconds)
>
> 604,591
>
> 1,741,347
>
> 603,966
>
> N.A.
>
> Connections per second
>
> 6.70
>
> 8.65
>
> 6.16
>
> 21.51
>
> Connections per hour
>
> 24,132
>
> 31,150
>
> 22,170
>
> 77,452
>
> Connections per Day
>
> 720,021
>
> 521,808
>
> 572,566
>
> 1,814,395
>
> Daily Bandwidth savings (KB)
>
> 11,377,738
>
> 8,223,877
>
> 8,949,527
>
> 28,551,142
>
> Load Average
>
> 1.0 to 2.0
>
> 1.0 to 2.0
>
> 0.5 to 1.5
>
> under 2.0
>
>
>
> This is a site that gets a massive amount of spam and is currently
> accurately rejecting over 98% of the spam at the MTA level. We have had
> less than ten sites that needed to be white listed as false positives in
> just over two months. We estimate that each of these servers can easily
> handle over 1,000,000 messages per day.
>
> After passing through BarricadeMX, MailScanner is only processing an
> average of 39,226 messages per day out of 1,814,395 average daily
> connection attempts, 1,940 (4.95%) of which are tagged as spam and 89
> (0.23%) of which are quarantined as viruses.
>
> The client reports getting “virtually no spam”.
>
> A white paper with more information and pricing is available at
> http://www.fsl.com . For more information and pricing please contact us
> off list at info at www.fsl.com .
>
> Julian Field, MEng CITP
> Chief Technology Officer
> Fort System Ltd.
>
> Steve Swaney
> President
> Fort Systems Ltd.
> Steve at fsl.com
> www.fsl.com
>
> --This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
> For all your IT requirements visit www.transtec.co.uk
>
>
--
Ken Anderson
Pacific.Net
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