Initial

pages/api/contactsend.js

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+import nodemailer from "nodemailer";
+
+const transporter = nodemailer.createTransport({
+  host: process.env.MAIL_DOMAIN,
+  port: process.env.MAIL_PORT,
+  secure: false,
+  auth: {
+    user: process.env.MAIL_USER,
+    pass: process.env.MAIL_PASS,
+  },
+  tls: {
+    rejectUnauthorized: false,
+    ignoreTLS: false,
+    requireTLS: true,
+  },
+});
+
+export default async (req, res) => {
+  const {
+    firma,
+    anrede,
+    titel,
+    vorname,
+    nachname,
+    email,
+    telefon,
+    betreff,
+    nachricht,
+  } = req.body;
+
+  const mailerRes = await mailer({
+    firma,
+    anrede,
+    titel,
+    vorname,
+    nachname,
+    email,
+    telefon,
+    betreff,
+    nachricht,
+  });
+  res.send(mailerRes);
+};
+
+const mailer = ({
+  firma,
+  anrede,
+  titel,
+  vorname,
+  nachname,
+  email,
+  telefon,
+  betreff,
+  nachricht,
+}) => {
+  let from = "";
+  let message = "";
+
+  if (firma) {
+    message += `${firma} <br>`;
+  }
+
+  if (anrede) {
+    message += `${anrede} `;
+  }
+
+  if (titel) {
+    message += titel + " ";
+  }
+
+  if (vorname) {
+    message += vorname + " ";
+  }
+
+  from += `${nachname} <${email}>`;
+  message += `${nachname} <br> ${email} <br><br><h3>${betreff}</h3><p>${nachricht}</p>`;
+
+  const mail = {
+    from,
+    to: process.env.MAIL_TO,
+    subject: `${betreff}`,
+    html: message,
+    replyTo: email,
+  };
+
+  return new Promise((resolve, reject) => {
+    transporter.sendMail(mail, (error, info) =>
+      error ? reject(error) : resolve(info)
+    );
+  });
+};