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kaos42
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Joined: Dec 25, 2003
Posts: 2
Location: USA
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 Posted: Thu Dec 25, 2003 6:38 am Post subject: Filtering "foreign fakers" |
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Lately, I've noticed that a lot of e-mails with foreign characters used in normal words in the sybject (e.g. "Vîàgärã") have been slipping through the cracks of the spam filters.
Can you fix up a filter to block those words with such "foreign fakers" from getting through to my inbox?
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Dr_Science1999
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Joined: Dec 23, 2003
Posts: 19
Location: USA
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denn988
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IP: 66.44.*.*
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| Posted: Fri Dec 26, 2003 1:59 am Post subject: Re: Filtering "foreign fakers" |
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| kaos42 wrote: | Lately, I've noticed that a lot of e-mails with foreign characters used in normal words in the sybject (e.g. "Vîàgärã") have been slipping through the cracks of the spam filters.
Can you fix up a filter to block those words with such "foreign fakers" from getting through to my inbox? |
You could try the following Regular Expression to look for non US-ASCII charactors in the translated Subject line. Those 'foreign' charactors are all within the group of charactors with decimal codes between 128 and 255 (HEX 80-FF).
the 'Subject' field...contains RegExpr...
You can set the filter to mark the message for deletion.....but I would not suggest that you Auto-delete based on this filter until you have tested it for a while and are satisfied with the results.
Keep in mind that this filter will fire if there is any charactor in the translated subject that is outside the range of normal US-ASCII charactors.
If you would like to see the charactors that this filter will allow (not fire), follow ]this link. Those charactors between 0 and 127 (Decimal) or 00 and 1F (HEX) are shown in the list. Those charactors are the standard US-ASCII charactors
The charactors above 127 decimal (1F HEX) that are in this charactor set will cause the filter to fire. Also....anything above 127 in any other charactor set that the sender may have specified will cause to fire.
You can call it NON-ASCII SUBJECT or anything else you would like.
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kaos42
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Joined: Dec 25, 2003
Posts: 2
Location: USA
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| Posted: Fri Dec 26, 2003 4:33 am Post subject: |
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Thanks, especially you, denn988. I think I'll stick with the name I used in the subject of the topic, "foreign fakers". It sounds cooler that way. 
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