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feat(email): carry custom headers through to SES - #14
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Email messages take an optional headers map, validated against header injection and against names the transport sets itself. The AWS transport moves to SES v2, whose SendEmail call can carry custom headers; the IAM action is unchanged.
This was referenced Oct 31, 2026
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Adds an optional
headersmap toEmailMessage, so an adopter can sendList-UnsubscribeandList-Unsubscribe-Postfor one-click unsubscribe.@aws-sdk/client-sesto@aws-sdk/client-sesv2, because the v1 SendEmail call cannot carry custom headers. Simple content is still authorised byses:SendEmail, so no IAM change is needed.sesClientpassed in config must now accept the v2SendEmailCommand. Called out in the changeset (minor bump on the fixed group).npm run release:verify: lint, format, typecheck and 12 tests pass.