Express Nodemailer в nuxt serverMiddleware - Ошибка: spawn /usr/sbin/sendmail ENOENT

Я пытаюсь отправить простой запрос POST на контактную форму на статическом сайте, созданном поверх NuxtJs.

Я пытаюсь использовать express и nodemailer в serverMiddlewareNuxt.

вот код от api/contact.js

const express = require('express')
const nodemailer = require('nodemailer')
const validator = require('validator')
const xssFilters = require('xss-filters')

const app = express()
app.use(express.json())

const rejectFunctions = new Map([
  ['name', a => a.trim().length < 4],
  ['email', v => !validator.isEmail(v)],
  ['message', v => v.trim().length < 10]
])

const validateAndSanitize = (key, value) => {
  return (
    rejectFunctions.has(key) &&
    !rejectFunctions.get(key)(value) &&
    xssFilters.inHTMLData(value)
  )
}

const sendMail = (name, email, msg) => {
  const transporter = nodemailer.createTransport({
    sendmail: true,
    newline: 'unix',
    path: '/usr/sbin/sendmail'
  })
  transporter.sendMail(
    {
      from: email,
      to: '[email protected]',
      subject: 'New Contact Form',
      text: msg
    }
  )
}

app.post('/', (req, res) => {

  const attributes = ['name', 'email', 'message']
  const sanitizedAttributes = attributes.map(attr =>
    validateAndSanitize(attr, req.body[attr])
  )

  const someInvalid = sanitizedAttributes.some(r => !r)

  if (someInvalid) {
    return res
      .status(422)
      .json({ error: 'Error : at least one fiel is invalid' })
  }

  sendMail(...sanitizedAttributes)

  res.status(200).json({ message: 'OH YEAH' })
})

export default {
  path: '/api/contact',
  handler: app
}

Все работает, как задумано, до функции sendMail, где я получаю эту ошибку:

(node:10266) UnhandledPromiseRejectionWarning: Error: spawn /usr/sbin/sendmail ENOENT
    at Process.ChildProcess._handle.onexit (internal/child_process.js:246:19)
    at onErrorNT (internal/child_process.js:427:16)
    at processTicksAndRejections (internal/process/next_tick.js:76:17)
(node:10266) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 6)

Любая идея, что я делаю неправильно?