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Version: 1.4.x


You can send email notifications through MailerSend transactional email API.

Unique Identifier

Each provider is identified by a unique identifier. Unique identifier of Postmark provider is mailersend_email

Enabling MailerSend

To enable MailerSend provider, login to your Engagespot dashboard, goto Channels -> Email and enable MailerSend.


MailerSend provider uses email attribute in your user's profile as the primary address to deliver the notifications. So make sure your user's profile has the email attribute set.

MailerSend Configurations.

MailerSend requires the following configurations.

API_KEYAPI token from your MailerSend dashboardYes
FROM_EMAILSender signature created in your MailerSend dashboardYes
FROM_NAMESender signature created in your MailerSend dashboardYes

Overriding Configurations

MailerSend provider allows you to override all the above configurations (and you can specify several more options) while sending a notification through Engagespot API, using the endpoint.

To override the configurations, you must supply them via override -> mailersend_email parameter of the above API. Configurations override values should be passed via _config object, and you can directly supply any additional parameters that will be passed to MailerSend API.

For example,

"notification": {
"title": "Anand commented on your photo",
"message": "Hey Steve, you're looking cool 😎. Who took this photo?",
"url": "",
"category": "comment"
"recipients": [""],
"override": {
"mailersend_email": {
"_config": {
"from": {
"email": "",
"name": "MailerSend"
"to": [
"email": "",
"name": "John Mailer"
"subject": "Hello from {$company}!",
"text": "This is just a friendly hello from your friends at {$company}.",
"html": "<b>This is just a friendly hello from your friends at {$company}.</b>",
"variables": [
"email": "",
"substitutions": [
"var": "company",
"value": "MailerSend"

Setup delivery tracking

You can track delivered, seen, interacted events for the emails sent through Mailersend provider.

Copy the unique tracking callback URL for your mailersend provider.

You can find this from Channels menu -> Email -> Mailersend provider.

Setup webhooks in Mailersend dashboard

Navigate to Email -> Domains -> your domain -> Click on "Manage" button -> Scroll down to webhooks section and click "Add Webhook"

Paste the copied tracking URL to the "Endpoint URL" field. Select the activity.sent, activity.delivered, activity.hard_bounced, activity.soft_bounced,activity.opened, activity.clicked events.

Done! now you'll see these events in your Engagespot Console logs.