
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 developers and QA teams that need disposable inboxes for testing onboarding flows or automations. The REST API and webhook delivery support integration into automated workflows.