Spam Filter

[jgenovese]

I am trying to build a spam filter in Eudora. Eudora supports Regular Expressions, the POSIX implementation. I want the filter to look for [e-mail] AND any other occurrence of @earthlink.net. If I could use a wildcard, I would look for *@earthlink.net. Can someone help with this code?
Thanks
John

[Anon]

Would this help?

if(stristr ($searched_string, "@earthlink.net)) {
echo "@earthlink.net Found";
} else {
echo "@earthlink.net Not found";
}

Check here, also:
http://www.php.net/manual/en/function.stristr.php

[jgenovese]

Ken,
I was thinking something more on the lines of this.

[a-z0-9-]+(.[a-z0-9-]+)*@earthlink.net

I just don't know if this syntax is correct. I know that, as a filter, it does not work.

Again, I want to catch spam that was sent to a bunch of @earthlink.net email addresses. The filter must be in two lines. One for the first expression and the second for the second expression. I will check for [e-mail] AND [a-z0-9-]+(.[a-z0-9-]+)*@earthlink.net. If I test true, I will transfer the email message to a spam folder.