How to send SMS messages with Mailersend

Knock integrates with Mailersend to send SMS notifications to your recipients.


  • Delivery tracking
  • Per environment configuration
  • Sandbox mode

Getting started

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

Provider configuration

API Keystring*The API key from Mailersend. Must have SMS sending permission.
From phone numberstring*The phone number to send messages from.

Recipient data requirements

In order to send an SMS notification you'll need a valid phone_number property set on your recipient.