[vidarbrekke]

Design proposal

Proposal: proposals/durable-system-email-delivery.md

Proposal type

• Feature plan
• RFC
• Amendment, supersession, or withdrawal

Related work

Discussion: #4140

Readiness

• The proposal identifies its author and, for an RFC, its champion and Maintainer sponsor
• The proposal describes observable behavior, compatibility, failure handling, and verification in proportion to its risk
• Conflicting accepted or pending proposals are reconciled in this pull request
• This pull request contains no implementation code
• The proposal status is accepted (check only when ready to merge)

AI assistance

• This proposal used AI assistance — model/tool: OpenAI Codex (GPT-5). The human author remains responsible for reviewing and approving the complete proposal.

Review request

Please review the open questions before deciding whether to sponsor the RFC, especially the scope of application-owned notifications, the meaning of accepted, and compatibility behavior for existing Promise<void> providers.

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