
Guerrilla Mail
8.9#2 in temporary email servicesFrom $9.99 a yearFree planAndroidWebAPIExtension
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It suits people needing temporary addresses for less-trusted signups and webmasters checking mail delivery. It also fits users who need API access or custom domains.
It suits people who want a short-lived inbox for sign-ups without sharing their regular address. Developers working on signup or email-verification tests in CI, QA fleets, or deliverability checks may find the API offering relevant.