Password Reset Email Delivery Must Respect Link Expiry, Not Just Retry Transport

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A guide for Express transactional email services argues that password-reset delivery should be governed by the application's absolute link expiry rather than by transport success. The author recommends a versioned template contract owned by the application, with required variables, expiry wording, and locale fixed in advance. Retries should only occur while the reset link still has useful lifetime, and expired jobs should stop rather than be counted as recovered. Alerts should page on sustained expiry without acceptance or queue delay consuming the delivery budget, and create tickets for isolated recovered retries. The piece also stresses logging state transitions without ever logging the reset token.

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