When it comes to online communication, emailing is the most commonly used method. However, when we need to fill out a form or submit a document through email, we use a mail form. It's a convenient way to send information, but sometimes, we need to use different terms to refer to this function. Some synonyms for mail form are email form, contact form, message form, online form, webform, and submission form. Although they mean the same thing, each term can suit a different context, audience, or purpose. Regardless of the synonym used, the important thing is to have a clear and easy-to-use mechanism for sending information through email.