saguaros hi!!
please, I would like to remark that the regular contact form (you may enter through the main menu in the header) is working all right with my SMTP info... it sends both emails... the one to the webmaster and the copy to the person sending the request...
on the other side, I just made a test with your SMTP info... first quick contact module... it didn't show the error, but I only got the copy of the person making the request... I didn't got the email as webmaster...
then, I also made a test with the core joomla contact form (in the header menu)... and I got the two emails: webmaster and person requesting info...