nuxt-mail | Adds email sending capability to a Nuxt.js app. Adds a server route, an injected variable, and uses | Frontend Framework library

Looking at the readme and the related page of nodemailer, it looks like that:

• to refers to the actual email address of the receiver, something like kuro@yourdomain.com
• host needs to be a valid hosted SMTP server, so localhost is probably no the good one here, since it will 100% not work once pushed to production
• the port depends of the SMTP configuration essentially: defaults to 587 if is secure is false or 465 if true (from nodemailer documentation)

Here is a blog article to setup some emails IF you will be using the node part of your Nuxt app: https://blog.lichter.io/posts/emails-through-nuxtjs/

Here is a blogpost on how to especially use nuxt-mail: https://dword-design.de/blog/sending-emails-with-nuxt-js-the-easy-way/

You will still need a mail sending service to have this work, on Mailtrap thanks to Mailgun, Sendgrid, Mailchimp or alike.

You can also use Netlify functions for that: https://css-tricks.com/netlify-functions-for-sending-emails/ or any other serverless functions

As you can see, the configuration is not trivial and there are several ways to achieve this but it essentially comes down of using an exernal service, especially if you plan on going full-static only.