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Real-time email webhooks
Get notified in an instant when a transactional email event happens. Simply configure your endpoints, the events you want to track, and the automated response.
Receive instant push updates
Use webhooks to listen for email events without wasting time constantly polling the API. As soon as updates are pushed to the server, you receive notifications on the callback URL.
Send secure HTTP requests
Protect your webhook URLs from malicious activity and false events with secure signature headers. Every HTTP POST request sent to your receiving app contains a secret signature key that is unique to you.
Monitor events as they happen
Create your custom analytics dashboard and set up triggered workflows based on any event type of your choice. Get notified for a successful email delivery, spam complaints from recipients, and much more.
Review your webhook history
See all POST requests, including retries, for your URL endpoints in the past 7 days. Monitor your webhook event data for any discrepancies, then disable or delete your webhooks when necessary.
More features to explore
MailerSend is packed full of features that help you save time and grow your business.
Send emails
Email delivery
Enjoy the flexibility of sending a few emails or scaling quickly to send a few million.
Transactional emails
Intuitively-designed tools allow anyone to contribute, while an advanced infrastructure lets you scale fast.
SMTP relay
Use Simple Mail Transfer Protocol when you want to quickly send emails using a reliable Internet standard.
Email API
Start sending and tracking your emails with our easy API integration process and clean documentation.
Dynamic email templates
Build one-to-one customer relationships on a mass scale using a single email template.
Email verification
Verify a single email address or upload an entire email list to verify in bulk.
Control your sendings
Webhooks
Get notified as email events happen so your integration can automatically trigger reactions.
Advanced email tracking
Every email is a learning experience. Monitor your email performance to find what works best.
Manage the unsubscribe page
Whether people are unsubscribing, give them a compelling reason to stay.
Suppression list management
Protect your sending reputation by adding email addresses and domains that you should not send to.
Track the results
Create emails
Custom HTML template builder
Interested in writing your own HTML code? Our HTML email template editor gives you the flexibility to build exactly what you want.
Drag & drop email template builder
Our drag & drop email editor empowers you to create professionally-designed transactional emails.
Rich-text email editor
Create plain text emails with the formatting capabilities of HTML. Add links, images, bullet points and style text with ease.
Control your account
User management
Invite your team members to collaborate on projects by assigning roles and granting permissions.
File manager
Streamline your workflow by organizing and keeping all your files in one place in the cloud.
Multiple domains
Use multiple domains to manage different brands or products with one MailerSend account.