Please see our new sending guide for updated sending or the method documentation.

Sending with MailSlurp

MailSlurp can send emails and attachments from any inbox you create. You can send email with MailSlurp using the Dashboard's compose page, the REST API or the SDK libraries directly from applications or tests.

Filtering bounced recipients

Sending emails to recipients that have bounced in the past will throw an API error. To avoid this use the flag to filter out any known bad addresses when sending.

Receiving email

You can receive email with MailSlurp's SDK, an SMTP client or even with GraphQL.


To send an email with MailSlurp you must have at least one inbox to send from. Creating an inbox is easy and can be done with the API or Dashboard UI.

Register a custom domain to send emails from a domain name that you own.