CleverTap supports sending emails through Mandrill.

Step 1: Integrating Mandrill into CleverTap

• In the dashboard, navigate to Settings and click on Integrate Email.
• Select Mandrill.
• In the Host text box, fill the host value as smtp.mandrillapp.com.
• In the Port text box, fill Port value as 587.
• Fill in the Username value as your Mandrill username.
• API Key value is any valid Mandrill API key.
• From Address – this value is used as the sender email address. Most people will not open an email unless they recognize the sender.
• Save your settings.
• Finally, click Send a test email and fill in your details to test the configuration details you entered. Has it arrived in your inbox? If not, see troubleshooting steps below.

Step 2: Bounces, Rejections, Spam, and Unsubscriptions

When an email is classified as bounced, rejected or when a user unsubscribes or marks as spam, CleverTap must be notified so that no further deliveries to that mailbox are attempted. This is considered a good practice and helps improve your sender reputation. Good sender reputation virtually guarantees better delivery rates.

• In the dashboard, navigate to Settings > Webhooks.
• Click on the Add a Webhook link.
• As shown in the image below, check the following: Message is Bounced , Message is Rejected, Message Recipient Unsubscribes and Message is Soft-Bounced.
• In the Post to URL input box, add the Callback URL as shown in your CleverTap Email Settings page.
• Save your settings.
• In Post to URL section, paste the call back URL you'll get from CleverTap Settings -> Email settings page

• In Dashboard, navigate to Settings → Sending defaults.
• As shown in the image below, check the following: Add Unsubscribe Footer

Step 3: Troubleshooting

• Check whether Mandrill API key used is not restricted by IP address.
• Make sure that your Mandrill API key is active.
• Check your SPAM folder to see if the message has been classified as SPAM by your email provider.