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below regex will match any of the following:<br />
send this to at least 10 people<br />
send this to at 10 people<br />
send &nbsp; this &nbsp; to &nbsp;10 people<br />
send &nbsp; to &nbsp;14 people<br />
send &nbsp; to &nbsp; people <br />
Hope it helps. Cheers<br />
<br />

<pre><code id="code-254271">/send(?:\s{1,}this)?\s{1,}to(?:\s{1,}at)?(?:\s{1,}least)?[\s0-9]{1,}people/im
</code></pre>
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below regex will match any of the following:
send this to at least 10 people
send this to at 10 people
send   this   to  10 people
send   to  14 people
send   to   people
Hope it helps. Cheers



/send(?:\s{1,}this)?\s{1,}to(?:\s{1,}at)?(?:\s{1,}least)?[\s0-9]{1,}people/im


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I like this however it does not ignore case. Can you write it to ignore the upper or lowercase of any letter? I checked the documentation on the Ironport and it uses Python for its regular expression. Dont know if this helps.
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I like this however it does not ignore case. Can you write it to ignore the upper or lowercase of any letter? I checked the documentation on the Ironport and it uses Python for its regular expression. Dont know if this helps.

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Thank you for your prompt response!
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<div class="content wysiwyg-content">
Hello Experts,<br />
<br />
I am trying to write a regular expression to block chain mails. The current line I am trying to detect is &quot;send this to at least 10 people&quot; however I want to match based on any number of people and ignores case. I am currently using Ironport as our mail filtering solution. Here is what I have so far:<br />
<br />
\Qsend this to at least\E [0-9]<br />
<br />
Also, does anyone have any other tricks to catch chain mails.. Thanks<br />

</div>
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Hello Experts,

I am trying to write a regular expression to block chain mails. The current line I am trying to detect is "send this to at least 10 people" however I want to match based on any number of people and ignores case. I am currently using Ironport as our mail filtering solution. Here is what I have so far:

\Qsend this to at least\E [0-9]

Also, does anyone have any other tricks to catch chain mails.. Thanks


Regular Expression for chain mail message.

A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.