Once Email official documentation · v1

Versions and changelog

Versions and changelog: Authoritative product and developer guidance for receiving temporary email, troubleshooting delivery, and testing authorized email flows safely.

Reviewed 15 August 2026

What you can do

Versions and changelog: Authoritative product and developer guidance for receiving temporary email, troubleshooting delivery, and testing authorized email flows safely. Every artifact has its own immutable version and checksum; source existence or a passing private candidate does not mean public release. Verify the current page version and follow the linked next step; never infer a capability from a screenshot, old article, or package name.

Failures and recovery

Versions and changelog: Authoritative product and developer guidance for receiving temporary email, troubleshooting delivery, and testing authorized email flows safely. Breaking changes require a migration path, compatibility window, updated examples, consumer tests, release notes, and rollback evidence. Verify the current page version and follow the linked next step; never infer a capability from a screenshot, old article, or package name.

Security and limits

Versions and changelog: Authoritative product and developer guidance for receiving temporary email, troubleshooting delivery, and testing authorized email flows safely. Current public status is stated on each page; GitHub and registry links appear only after anonymous access and download verification. Verify the current page version and follow the linked next step; never infer a capability from a screenshot, old article, or package name.