If your DNS records have been misconfigured, you can reset them to the default values provided by imbra. This restores the original A, MX, and other essential records.
Steps
Login to iPanel. From the sidebar, click Domains > Domain portfolio and then click on Manage.

In the second side bar click on DNS Records.

Under DNS Records page. Click the Create Default Records button.

Wait for the records to be reset. The DNS records table will refresh with the default entries.
Tip: Resetting DNS records will overwrite all your custom records. Export or note down any custom records you want to re-add before resetting.