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Why does junk mail contain random words?

Posted by MikeP-180526 - Created: 14 years ago
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5 replies (Showing replies: 1 to 5)

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Posted by linzi-mermaid - 14 years ago

No worries mate

If you need any help, I am around!

Steve

The Best labour saving device ever invented is tommorow

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Posted by MikeP-180526 - 14 years ago

Well thanks Steve for the offer but this is all far too techie for me!

I'm just a private email user who's hacked off with getting at least 30 junk emails a day which slip through the junk mail filter which btinternet use.  They catch about 50% more than they let through.

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Posted by linzi-mermaid - 14 years ago

 Mike <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

All we can do is try and beat them!

I operate my own server and have modified the send mail configuration files so that any incoming mail is tested for:

 1) Originating from an IP address known to be owned by Spammers. i.e. is it listed on one or more of the available black lists for example  spamhouse.org

2) Originating from a mail sender that is connected to a dial up or DSL line. Almost all genuine email is sent from servers connected to genuine commercial grade backbones i.e. circuit capacities of T1/E1 or greater.

3) Correct formatting of the mail headers. i.e. To: From: Subject: etc,etc

4) Mail address listed in our own spammer’s data base

5) And finally to see if the subject line contains certain trigger words such as Viagra, Pharmacy, Medications and so on.

 This is not 100% Foolproof, but looking at the log files on the server it seems that I am rejecting about 98% of incoming spam.

If you are running your own server I would be pleased to share my configuration files with you. If not, then all I can suggest is to change your mail account to an ISP with a more aggressive anti spam policy.

Best regards

 Steve

 

The Best labour saving device ever invented is tommorow

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Posted by MikeP-180526 - 14 years ago

Thanks for the explanation.  It's a pity these people don't use their intelligence and resources for something a bit less annoying .... like playing with the traffic!

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Posted by linzi-mermaid - 14 years ago

Hey Mike<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

It is an attempt by the Spammers to fool the Junk Mail Filter software into believing that the message is not Junk Mail. Reason being is that some of the spam filters read the subject and message body and calculate a value between 1 and 100 which represents the likelihood of the message being spam.

 For example suppose the threshold for spam was set at let say 60 the program could be confused into generating a number below 60 and therefore not treating the message as spam because of the inclusion of random non spam like words.

Hope this helps

Steve & Linzi

The Best labour saving device ever invented is tommorow