APIs, or Application Programming Interfaces, play a vital role in safeguarding your service from fake email registrations. They serve as the toolkit that enables you to confirm and validate the email addresses users provide. Let's delve into the various ways in which APIs lend their helping hand to this critical task: Email Verification Services: APIs can seamlessly connect with third-party email verification services like ZeroBounce, NeverBounce, or Hunter. These services check if an email address is genuine, active, and not linked to disposable or temporary email providers commonly favored by spammers. Syntax and Format Scrutiny: APIs can meticulously examine the syntax and format of an email address, ensuring it aligns with standard patterns. This nifty feature helps filter out email addresses with erroneous or deliberately obscured formats. Domain Confirmation: By performing DNS (Domain Name System) lookups, APIs can confirm the legitimacy of the email address's domain. T...