What is a Temporary Email?
A temporary email is an email address that automatically expires after a set period — usually between 10 minutes and 24 hours. The terms "temporary email" and "disposable email" are often used interchangeably, though temporary email specifically emphasises the time-limited nature of the address.
Popular temporary email services include 10MinuteMail, Temp-Mail, ThrowAwayMail, and GuerrillaMail. These services require no registration — users simply visit the site and receive a fully functional email address instantly.
How Temporary Emails Differ from Aliases
Temporary emails are distinct from email aliases (like Gmail's "+" addressing or Apple's Hide My Email). Aliases still route to a real, permanent mailbox and can be traced back to a real user. Temporary emails have no permanent owner — once they expire, the address and all its messages are deleted.
Impact on Businesses
- Trial abuse — The primary use case. A user signs up, uses the trial, and the email vanishes.
- Uncontactable users — You can't send password resets, receipts, or support messages to an expired address.
- Email bounces — Sending to expired addresses generates hard bounces, damaging your sender reputation with ESPs.
- Skewed analytics — Temporary signups inflate acquisition numbers while showing zero engagement.
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