Step-by-step guide to setting up Mailchimp (formerly Mandrill) with OneSignal for transactional email delivery. Includes domain configuration, API key setup, email testing, and subscriber management.
Add domain
View DKIM/SPF Setup Instructions
Create API Key
OneSignal API Key
.
Name the API Key
Copy the API key and SMTP Username
API Key Permissions
Enable Email Messaging
Select Mailchimp and enter credentials
Configure Mailchimp email settings
Configure default sender info
Send Test Email
support@onesignal.com
.For faster assistance, include:Open profile menu
Navigate to Account & Billing
Access API Key section
Create a new API key
Generate key
Copy key to clipboard