forward-email/helpers/custom-error.js

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class CustomError extends Error {
  constructor(
    message = 'An unknown error has occurred',
    responseCode = 550,
    ...parameters
  ) {
    super(...parameters);
    Error.captureStackTrace(this, CustomError);
    this.message = message;
    this.responseCode = responseCode;
  }
}

module.exports = CustomError;