when using template, plain text version is not sent

[bitflorist]

I use a template object as an email template in the transport.
as soon as I use template, the plaintext version doesn't work anymore.

Neither of this versions are working to send a plaintext email beside the Mime content.

          template: {
            name: 'views/email.pug',
            engine: 'pug',
            context: contextObject,
            text: `my Text and ${variable}` 
}

or

          text: `my Text and ${variable}`,
          template: {
            name: 'views/email.pug',
            engine: 'pug',
            context: contextObject,
}

thanks for any help!