> This always works for me...
>
> eval ("\$message = \"$message\";");

RED ALERT!  SECURITY TO THE BRIDGE!

"Captain, there's Klingons off the starboard bow!"

Oh, sorry.  Did I type that aloud?  Sorry.

If $message is a free-form email typed in by a potentially malicious user
this looks pretty dangerous to me...

Have you tried it with things like:

$message = '";exec("/usr/bin/cat /etc/passwd");';

Do *NOT* try this one, but if the above works, think what *THIS* would do!
$message = '";exec("/usr/bin/rm -rf /");';

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