How to send email with Mailtrap

Knock integrates with Mailtrap to send email notifications to your users.

In this guide, you'll learn how to get started sending transactional email notifications with Mailtrap through Knock. We also cover provider configuration and additional data you can pass through to Mailtrap.

Features

  • Attachments support
  • Delivery tracking
  • Link and open tracking
  • Per environment configuration
  • Sandbox mode

Getting started

You can create a new Mailtrap channel in the dashboard under the "Integrations > Channels" section. From there, you'll need to configure the channel for each environment you have.

Provider configuration

API keystring*The API key for your Mailtrap account
From email addressstring | liquid*The sender email address (can use Liquid tags)
From namestring | liquidThe sender name (can use Liquid tags)

Environment default settings

The following fields are optional and if set, will be applied to all email messages sent via this channel within the environment:

Reply-to addressstring | liquidThe reply-to email address (can use Liquid tags)
CC addressstring | liquidThe cc email address (can use Liquid tags)
BCC addressstring | liquidThe bcc email address (can use Liquid tags)
JSON overridesstring | liquidProvider API's paramater overrides

Additional data sent

Knock sends the following attributes along with your emails:

  • custom_variables.knock_message_id: the message ID attached to this email

Recipient data requirements

To send an email notification you'll need a valid email property set on your recipient.