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Mail Importer for Gmail
Mail Importer for Gmail is an open source project from Google that uploads the
contents of a Thunderbird mail archive to Gmail, doing its best to preserve the
read state, flagged state, and folders of the messages. It is written in Java
and uses
Messages.import
endpoint.
Clone the GitHub repository to get
the full source code, or browse the Gmail-related
code.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-03-24 UTC.
[null,null,["Last updated 2025-03-24 UTC."],[],[],null,["# Samples\n\nMail Importer for Gmail\n-----------------------\n\nMail Importer for Gmail is an open source project from Google that uploads the\ncontents of a Thunderbird mail archive to Gmail, doing its best to preserve the\nread state, flagged state, and folders of the messages. It is written in Java\nand uses\n[Messages.import](/workspace/gmail/api/reference/rest/v1/users.messages/import)\nendpoint.\n\nClone the [GitHub repository](https://github.com/google/mail-importer) to get\nthe full source code, or browse the [Gmail-related\ncode](https://github.com/google/mail-importer/tree/master/src/main/java/to/lean/tools/gmail/importer/gmail)."]]
