What is ZDB File Extension?
ZDB is an integral part of the Zimbra mail program. The Zimbra is an email client and also supports server that serves messages.
It comes under the data file category.
It is supported by only Zimbra apps.
It is Zimbra Inc, takes care of the file extension.
It has only one MIME type- application/octet-stream
How to open or view ZDB File Extension
Users can open the file in Microsoft Outlook with Zimbra Connector plugin.