Thank you for contacting Aspose support team.
Aspose.Email provides the facility to read the mbox file which is created by Thunderbird to save the mails and other data. Any folder like INBOX can be saved to mbox by using the export add-ons installed in Thunderbird. Once the INBOX folder is saved to the disc, that can be read by the sample code given here
. It is analogous to PST file maintained by Outlook.
Attached image shows how to create the Inbox file which is referred in the sample above. Please feel free to write us back if you have any other query in this regard.