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Tuesday, 28 October 2008 18:00 Last Updated on Friday, 30 January 2009 12:36 Written by Administrator

I think I hit a new personal record Today. According to my ESAT report. XWall stopped 729 spam messages for me . I must be on every spamers list. I guess that's what you have to expect if your email address is on the web. But I use all this spam to beef up subject and text blocks for my local clients. Specially the subject blocks are worth your time. They can't put an image or HTML in the subject line. Go for the misspelled words like "L!st" or F!rst" There is no chance of a false positive. Of course the spamers use the "bad" words but you get the idea. I was able to up the spam catching from 92% to 95% with subject blocks.

NDR Spam

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Monday, 08 December 2008 18:00 Last Updated on Friday, 20 March 2009 12:34 Written by Peter Banz

The NDR pain

is not getting any better. Some individuals may get several thousand spam/fake NDRs a day. The XWall Beta 3.43 brings relieve to these folks. It features a new FAKE NDR mechanism. In addition you also can block NDRs to individual recipients. Give it a try it will make a difference. You can download it from our support site http://support.ceratec.net or from Dataenter.

By the way if you think you get a lot of spam. I worked on a 35 user installation a few weeks ago.... they get 850,000 spam email a day!

Block Internal from Spam

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Tuesday, 13 January 2009 18:00 Last Updated on Friday, 30 January 2009 12:36 Written by Peter Banz

Viagra from the guy next door ... It's been awhile that we had to fight spoofed internal from addresses on a large scale. But it's the #1 issue today and we get calls about it everyday . In 8 out of 10 calls it turns out that the admin set a global exclude for the own domains. Not a good idea. Here is how to use XWall to get rid of all spoofed internal from spam:

Remove Global exclude email from for your domains. Instead use ip addresses ( Example 192.168.1.) and hosts like blackberry.net.

Don't have the internal from checked in the exclude options (options-global exclude-exclude options)

Block internal from (options-spam-envelope-internal from. Set the needed excluded here too - IP and hosts. If you have to outside users using POPp/SMTP without a static IP. Don't forget web and list server that send email through XWall. I usually set the action first at mark subject and see if the result is as expected.

SPF has matured. Unlike in the beginning if setup correctly it has very few false positives. Add an SPF record to your DNS and use the SPF block in your XWall (options-spam-SPF)

Enable Backscatter. Make sure your exchange or email server sends out through XWall. It will stop all the fake NFR and system messages.