generated: '2026-07-11' method: derived source: openapi/smtp2go-email-api-openapi.yml summary: types: - apiKey api_key_in: - header schemes: - name: ApiKeyHeader type: apiKey in: header parameter: X-Smtp2go-Api-Key description: API key passed as an HTTP header sources: - openapi/smtp2go-email-api-openapi.yml - name: ApiKeyBody type: apiKey in: header parameter: api_key description: API key can also be included in the JSON request body as the "api_key" field sources: - openapi/smtp2go-email-api-openapi.yml