A signup form (or subscription form) is a web form that collects a visitor's email address — and their consent — to add them to your mailing list. It is the primary way to grow a permission-based email list, whether embedded on a page, shown as a popup, or hosted as a standalone link.
Types of signup form
Common formats are embedded inline forms, popups, and hosted landing-page forms. Pairing a form with double opt-in confirms each address and keeps your list clean. Build one with Mailpro's signup form builder — see how to create a signup form with no code.
Why it matters
A clear, well-placed signup form turns visitors into subscribers you own, unlike a rented social audience. Ask only for what you need, and set expectations up front. See how to create a subscription form. Related: opt-in and landing page.
Mailpro and list growth
Turn visitors into subscribers you own
Build a signup form in minutes, embed it anywhere, and grow a permission-based list with Mailpro.