Is my feedback form being successfully abused?

Hello, About a few weeks ago I started seeing three emails that all come at the same time (within the same minute) that seem to be trying to exploit a feedback form I have on our website. Everytime someone submits a feedback form I am sent the information they entered. The To and From address are hard coded. Here is an example message [begin] == Name == dtdegq@nonlethal.com == Agency == dtdegq@nonlethal.com Content-Type: multipart/mixed; boundary="===============1815270735==" MIME-Version: 1.0 Subject: a8f1a36a To: dtdegq@nonlethal.com bcc: mhkoch321@aol.com From: dtdegq@nonlethal.com This is a multi-part message in MIME format. --===============1815270735== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit thgfxnes --===============1815270735==-- == Email == dtdegq@nonlethal.com == Comment == dtdegq@nonlethal.com [end] It seems to me that the attemped exploit is unsuccessful because I cannot find "dtdegq" or "mhko321" in /var/log/maillog. But I wanted to send this to the list in case someone knows different. Thanks, Chris.