Chapter 1 of 4 ยท Intro
Video transcript
Intro
A temporary inbox can get through a signup form. Here is how to spot one. This is the Disposable Email Checker. Paste an address, and it answers one question. Is this a temporary inbox? It matches the domain against an open source list of disposable providers. The list is on GitHub, so you can read it yourself. This matters at signup. Fake signups and trial abuse tend to start on these domains. You get 20 free checks every 24 hours. Try an address from a well-known temp mail service, and click Detect disposable.
Disposable result
Disposable email. This domain is a temporary or throwaway service. The advice is direct. Block it at signup, and keep it off your marketing lists. Notice there is only one flag. A full check runs underneath, but this page shows only the disposable reading.
What to do about it
Match your response to the form. A hard block fits free trials and account recovery. A warning can fit a newsletter. And keep it separate from free webmail. Do not block Gmail or Outlook just because they are free.
Get started free
20 free credits every day you use your account, up to 600 a month. No credit card required. Start at billionverify.com.
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Disposable Email Checker: Detect Temp Mail AddressesPaste an email address to check if it is disposable or temp mail. Free temp mail checker and detector with no signup: 20 checks per IP every 24 hours.Try Disposable Email CheckerMore in Free Tools
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Native MCP Server integration ยท Catch-all reported separately ยท Free tier, no credit card