Allforms Email Form Service

Will my visitors know I am using the Allforms free email form service?
Possibly. When configuring your form at Allforms, you will have the option to "Enable Security Code Protection" for your form (to prevent abuse of your form or spam.) If you select "Yes", before being allowed to submit their message, your visitors will be taken to a page at Allforms where they will be asked to retype a security code as it appears in an image on the page. Also, occasionally your visitors may see the security page whether or not you selected the Security Code option. This will occur if a pattern of frequent form submissions is detected that causes concern that your form is being abused or used for spam.