Bug 2075 - Use of at sign "@" instead of "a"
Summary: Use of at sign "@" instead of "a"
Status: RESOLVED WONTFIX
Alias: None
Product: Spamassassin
Classification: Unclassified
Component: Rules (show other bugs)
Version: 2.55
Hardware: Other other
: P5 enhancement
Target Milestone: 3.1.0
Assignee: Daniel Quinlan
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2003-06-17 13:17 UTC by Stuart Gall
Modified: 2004-09-11 14:07 UTC (History)
0 users


Attachment Type Modified Status Actions Submitter/CLA Status
Spam using the at sign instead of a text/plain None Stuart Gall [NoCLA]
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Description Stuart Gall 2003-06-17 13:17:34 UTC 
I have been getting some spam where the at sign is being used instead of a

eg s@ve so much.

Obviously we do not want to score email addresses, an email address generally 
has a period before the space following the at so I suggest

body SWG_SUSPECT_AT	/ [a-z]+@[a-z]+ /i
describe SWG_SUSPECT_AT	use of @ sign in the middle of a word.

I tested this it does not fire on email addresses, unless its 
hostmaster@com say but I think I can live with that.
Comment 1 Stuart Gall 2003-06-17 13:19:17 UTC 
Created attachment 1047 [details]
Spam using the at sign instead of a
Comment 2 Bryce SPAM Account Nesbitt 2003-09-26 07:06:39 UTC 
The AT sign is just the tip of the obstification iceberg.  Here's a real example:

Foreign ph@rmacy referr@l service
S@ve as much as 70% on 0r1g1nal manufacturer brand n@me drugs.
All orders are shipped via express post to ensure you get your medic@tion on time.
Ple@se rem0ve:
Comment 3 Daniel Quinlan 2004-08-27 17:18:18 UTC 
more accuracy and performance bugs going to 3.1.0 milestone
Comment 4 Daniel Quinlan 2004-09-11 22:06:06 UTC 
testing
Comment 5 Daniel Quinlan 2004-09-11 22:07:11 UTC 
OVERALL%   SPAM%     HAM%     S/O    RANK   SCORE  NAME
  75843    47499    28344    0.626   0.00    0.00  (all messages)
100.000  62.6281  37.3719    0.626   0.00    0.00  (all messages as %)
  1.694   2.3137   0.6562    0.779   0.00    0.01  T_SUSPECT_AT

Thanks for the contribution.  The results were not too good, so I'm
closing this bug.