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The concept behind mailinator is that most people maintain many email addresses in order to reduce their exposure to spam. Mailinator was designed to offer limitless (for conversation's sake) mailboxes at a specified domain at the most fundamental level. The purpose of the "throw-away" email account was to save users from having inboxes that were only used to sign up for different web services. But over time, programmers who needed to ensure that their workflows were delivering emails as planned found this tool to be helpful. Further functionality that this core user group desired to make automating operations simpler was gradually fashioned through feature requests. With trillions of inboxes at their disposal, Mailinator enables developers and QA testing teams to automatically test their SMS and Email workflows, such as 2FA verifications, sign-ups, and password resets.