Mailtrap Transport

To use the Mailtrap transport, install mailtrap via NPM:

npm i mailtrap --save

Next, setup a mailer in the mailers object in config/mail.js, the name of the mailer can be anything but you can use mailtrap as well:

// config/mail.js
mailers: {
  mailtrap: {
    transport: 'mailtrap'
  }
}

Also set the default option in config/mails.js to mailtrap or whatever name you call the mailer above.

// config/mails.js
default: 'mailtrap'

Mailtrap credentials

To set the Mailtrap credentials, you have a couple of options:

Environment variables

Set the following environment variable:

MAILTRAP_TOKEN=f4k3t0k3n123
MAILTRAP_ACCOUNT_ID=2335532
MAILTRAP_TEST_INBOX_ID= 49469292 // Optional for email testing

local.js

In development, you can specify a mailer of the same name in local.js so as to override the credentials like apiKey specified in config/mail.js

// config/local.js
mail: {
  mailers: {
    mailtrap: {
      token: 'f4k3t0k3n123',
      accountId: 49495395,
      testInboxId: 493923439 // Optional for email testing
      }
  }
}

config/mail.js

You can set your credentials within the mailer defintion as well:

// config/mail.js
mailers: {
  mailtrap: {
    transport: 'mailtrap',
    token: process.env.MAILTRAP_TOKEN,
    accountId: process.env.MAILTRAP_ACCOUNT_ID,
    testInboxId: process.env.MAILTRAP_TEST_INBOX_ID // optional for email testing
  }
}

Notice that for the token, accountId, and, testInboxId, in config/mail.js we are still using environment variables as its best practice not to add secrets to your codebase.