delete the following files:
webassist/email/mail_php.php
webassist/email/mailformatting_php.php
then edit the UE instance and click OK to have them regenerated.
make sure to upload the new versions to the site.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.