Providing an efficient preview capability for restoring emails backed up to an object storage

A method comprising:

• obtaining, by a server, a set of emails to be backed up to a cloud-based object storage, the set of emails including at least a first email;
• extracting, from the first email, first identifying information including one or more of a sender, receiver, subject line, and a filename of any attachments;
• storing a backup of the set of emails on the object storage including storing the backup of the first email as part of a first object;
• storing, as part of a metadata database, metadata associated with the backed-up first email including the first identifying information;
• receiving a request to preview one or more of the backed-up set of emails including the backed-up first email;
• retrieving, from the metadata database, the first identifying information;
• and
• providing the retrieved first identifying information as part of the preview for the backed-up first email without accessing the first object.

A computer program product comprising a non-transitory computer-readable medium having a computer-readable program code embodied therein to be executed by one or more processors, the program code including instructions to:

• obtain, by a server, a set of emails to be backed up to a cloud-based object storage, the set of emails including at least a first email;
• extract, from the first email, first identifying information including one or more of a sender, receiver, subject line, and a filename of any attachments;
• store a backup of the set of emails on the object storage including storing the backup of the first email as part of a first object;
• store, as part of a metadata database, metadata associated with the backed-up first email including the first identifying information;
• receive a request to preview one or more of the backed-up set of emails including the backed-up first email;
• retrieve, from the metadata database, the first identifying information;
• and
• provide the retrieved first identifying information as part of the preview for the backed-up first email without accessing the first object.