How to delete domain

mrg

Afternoon everyone,
Bit of background this customer has went out of business and the domain has not been re-registered, I go to remove the domain I get the following error. Cannot remove non-empty domain domain.com

What is the best practice for resolving this, remove mail accounts then domain? any information would be great cannot seem to see anything on google regarding this.
Kind regards

aaronsmith

Yes I believe you must first delete all the mailboxes within the domain, then you can delete the domain itself. That’s a safety mechanism to avoid accidental deletion of an entire domain that’s in active use.