Yes, you can set specific headers for each template in Ory Kratos. You can configure custom SMTP headers in the

courier

section of your Kratos configuration file. For example, if you're integrating with AWS SES SMTP interface, you can configure the headers for cross-account sending like this:

yaml courier:    smtp:     headers:      X-SES-SOURCE-ARN: arn:aws:ses:us-west-2:123456789012:identity/example.com      X-SES-FROM-ARN: arn:aws:ses:us-west-2:123456789012:identity/example.com      X-SES-RETURN-PATH-ARN: arn:aws:ses:us-west-2:123456789012:identity/example.com

This configuration should be placed in your Kratos configuration file (e.g.,

path/to/my/kratos/config.yml

). For more details, you can refer to the [Ory Kratos documentation](https://www.ory.sh/docs/kratos/self-hosted/mail-courier-selfhosted#custom-smtp-headers).

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