remix-syntax/app/utils/mailer.ts

import nodemailer from 'nodemailer';

export async function sendEmail({
  to,
  text,
}:{
  to: string;
  text: string;
})  {
  let testAccount = await nodemailer.createTestAccount();
  let transporter = nodemailer.createTransport({
    host: 'smtp.ethereal.email',
    port: 587,
    secure: false,
    auth: {
      user: testAccount.user,
      pass: testAccount.pass,
    }
  })

  let info = await transporter.sendMail({
    from: "Syntax <scott@syntax.fm>",
    to,
    subject: "Potluck Message",
    text,
  });

  console.log('Message send:', nodemailer.getTestMessageUrl(info));
  
  return "success";
}