We recently switched our DNS provider for our domain from Namebright to AWS Route53. Everything is working properly except for one strange issue.
We’re currently not able to receive emails from our Mandrill account (using Mandrill SMTP) to our domain email addresses managed by gsuite. To be clear, our Mandrill emails are working in general. Every email address is able to receive emails from our Mandrill account, including our personal gmail addresses. Also, our domain email addresses are able to send emails and receive emails from any other source, just not from our Mandrill account.
We’re at a loss as to how to debug this issue. We suspect the issue must be with gsuite because Mandrill says that the emails were delivered successfully. What could the issue be?