Transactional Email

Transactional email is triggered by a user action. It is expected, often time-sensitive, and carries higher deliverability expectations than marketing email because it is directly tied to product functionality. A password reset landing in spam is a product failure.

Related skills: authentication/SKILL.md (dedicated subdomain auth setup), content/SKILL.md (HTML structure, plain-text requirements), compliance/SKILL.md (transactional exemptions and their limits)

What Counts as Transactional

Transactional email is triggered by a specific user action and contains information the user needs as a result of that action. It is not initiated by the sender for commercial purposes.

Clearly transactional: