print MESSAGE "To: keith\@wilsonstreetstudio.ca\n”; # Don't forget to 
+escape this @ symbol!
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The last double quote on line 32 is not a real double quote that Perl recognizes but something your text editor made up. Change the last thing to a proper double quote.

Also, note that your feedback form is prone to be abused as a spam sender. If somebody maliciously sends a newline in the email address field, they can add additional Cc headers to your email, making your mail host send out spam to them. Please consider not printing into sendmail and use MIME::Lite or some other module to send mail.

Also, you might be interested in using the TFMail script to send mail.