Re: Secret Codes in Spam and PHP

i'm mail admin and works with spam filters .... I tell you some tricks to fix your problem: 1- If you email is HTML based, it should be correct..... 2- If you put a "unsuscribe" code with the email address of the recipient the spam filter "score" high your email. 3- If you send a mail header X-Mailer: PHP some filters "score" high This are only a little tricks , for testing you should install a test spam filter , for example bogofilter, spamassassin ,or DSPAM. For example i have spamassassin configured to tell me what rules score my messages. P.D: Sorry for my bad english On Thu, 16 Sep 2004 15:14:14 -0500, Kristopher Spencer-Yates <kyates@2binteractive.com> wrote: > As many of you may have noticed, A friend and I have noticed the odd > text at the bottom of spam. My friend once stated "What if this is some > secret code.. they send it to everyone to hide that it is code.. but the > person it is intended for knows how to decipher?" Hmm.. interesting. > So that got me to coding.. I havent had much time to tinker but I do > have some Fred Wrixon books.. anyway overall just getting started on > this off-time project. If this strange text at bottom of spam is indeed > some ciphertext, they are probably using some old cipher methods. This > thought is based simply on comparing known cipher appearance to that of > the text in spam and often seeing some similarities. > > I was wondering if anyone else has wondered the same thing about the > wierd text at the bottom of a lot of the spam, and if anyone has ever > used PHP to create any cipher tools in an attempt to crack the following: > > Columnar Transposition ciphers > Word transposition ciphers > Franklin-Dumas cipher > > My first round is creating a script that goes through and takes various > combinations (1st letter of each word, 3rd letter of every 3rd word, > etc., etc., etc.,) I guess this is considered letter transposition > ciphering. I have some vague ideas to incorporate dictionary database.. > so if my script attempts to decrypt a peice of text with "method 402" > and the result contains actual words from a dictionary, it will flag it > or save it to a seperate database.. something along those lines. > > This is just for fun... no one is sponsoring/financing anything here.. > just wondering if anyone is interested in sharing ideas and/or code, > philosophy, etc. Of course, this could be done in any language, or even > on paper... I can burn a ream of notebook paper fast doing double > columnar by hand but my interest is using PHP specifically. I figure, > even if my friend is just crazy and no one is sending secret messages > inside spam, it is at least going to be fun, rewarding in knowledge and > the sharing of information and ideas. And if we do crack something, > maybe Fred Wrixon can mention PHP in his next book. :) > > Kris > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- -- Fernando Gutierrez Perez -- gmeileando un poco :)