Disposable email
A disposable email is a temporary, single-use address generated by services such as 10minutemail or guerrillamail, typically used to bypass signup forms without committing a real inbox; it is a common source of low-quality waitlist signups.
How it works
Services like 10minutemail or guerrillamail hand out a throwaway inbox that self-destructs after a short time. Someone uses it to get past a signup form — claim a lead magnet, grab a referral perk — without exposing a real address they would have to manage.
Why it matters
Disposable addresses inflate signup counts with people you can never actually reach, and they bounce when you email the list, which damages email deliverability. Detecting and blocking known disposable domains keeps the list honest. A honeypot field catches bots; disposable-domain blocking catches throwaway humans.
Related terms
- Email deliverability — Email deliverability is the rate at which sent emails reach the recipient's inbox rather than being routed to spam, bloc...
- Honeypot field — A honeypot field is an invisible form input that human users leave blank but automated spam bots fill in, used to silent...
Frequently asked questions
- How do I block disposable email addresses?
- Check the email's domain against a maintained list of known disposable providers at signup and reject or flag matches. Many waitlist tools do this automatically; the list needs periodic updates as new throwaway domains appear.
- What percentage of waitlist signups are disposable emails?
- It varies widely by audience and how you promote — a niche, trusted source brings almost none, while a public incentive (a giveaway or reward) attracts more. Rather than assume a number, monitor your own bounce and disposable-domain rates and block accordingly.
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