In order to start signing your emails sent via Mandrill with DKIM keys, you need to manually setup DKIM for Mandrill. Complicated as it may sound, the process is quite simple. DKIM authentication helps encrypt email messages with a private key that is checked against a public key in the sender’s DNS to verify email sources.
Steps to Setup DKIM for Mandrill
First off you need to add your domain to mandrill
Open your mandrill account and go to Settings > Domains
Enter your domain name and click on Add button
After adding your domain, for setting up DKIM for mandrill click on “View DKIM Settings”, you will find the DKIM DNS record that you need to publish in your domain’s DNS, with the following values:
v=DKIM1; k=rsa; p= (your unique key generated for your domain)
After publishing the TXT record, wait up to 24 hours to allow your DNS to process these changes. Finally, click on the Test DNS Settings button in your DNS management console and check for a verification mark against your record.
Verify if you have any errors in your DKIM record: use our free DKIM record lookup tool
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