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Written By
Simran Bhatia -
Approved By
Sonika Rawat -
Updated on
November 14th, 2026 -
Read Time
7 minutes
User Query: How can I export 10,000+ Mailbird emails to MBOX format for enterprise email archiving without losing attachments, email properties, or folder structure?
Introduction: E-mail communication plays a significant role in everyday business activity. Used for exchanging information regarding projects, client requests, transaction approval, and other business record-keeping purposes. Storing all e-mails in an e-mail client may not prove to be an ideal long-term archival solution. It is due to this reason that many users want to export Mailbird emails to MBOX. This blog post describes the manual process and the professional SysInfo IMAP Backup Tool for performing instant backups.
MBOX is a mailbox file format in which numerous emails are stored in a single file. In contrast to other formats, where each email is stored as a separate item, all emails are stored together within the mailbox archives. For instance, one can have different MBOX files for Sales, HR, Finance, and Support departments. It helps to organize the correspondence and find older dialogues within a company.
Reasons to Convert Mailbird to MBOX
There is no facility to directly export emails from Mailbird in the MBOX format. One can make use of Mozilla Thunderbird as an intermediary program. Export your emails from Mailbird to EML format. Then import EML files into Thunderbird. Finally, export emails in MBOX format.
Step 1: Export Emails from Mailbird
Step 2: Installation of Mozilla Thunderbird and Importing EML Files
Step 3: Saving Emails in MBOX Format
The SysInfo Mailbird to MBOX Converter allows users to directly export emails into MBOX. This tool supports bulk conversion with multiple advanced features, such as Date Filter, Remove Duplicates, Skip Previously Migrated Data, and more. With its simple interface, technical and non-technical users can easily use it. This tool also exports Mailbird to Outlook PST and other file formats/email clients. Apart from that, this tool runs on Windows and Mac OS versions. A free demo version is available to evaluate its functionality. If you have any queries, feel free to contact our 24/7 technical support.
Important Note: For detailed instructions, refer to the software guide. The tool also supports both IMAP and POP3 email migration. POP3 is best for downloading emails from a mail server to a local device for offline access and storage.
An American firm has 50 staff members using Mailbird to handle their business emails. The IT department needs to archive 5,00,000 emails in order to keep them stored and refer to them at a later date. Storing all these emails inside the Mailbird application is not an easy task for backup purposes. Thus, the IT team opts to export Mailbird emails to the MBOX file format.
The process to export Mailbird emails to MBOX helps businesses keep separate copies of important email conversations for backup, archiving, and future access. Users can follow the manual Thunderbird method or use the SysInfo tool to export multiple emails with options such as date filtering and duplicate removal. Choose the method that suits your mailbox size and archiving needs, and always verify the exported emails before storing them.
Ans. You can export Mailbird emails to EML using the Mailbird Export Tool, import those files into Thunderbird, and then export them as MBOX. Alternatively, use a compatible Mailbird to MBOX converter.
Ans. Yes, you can convert emails while retaining their content and attachments, provided the selected method supports them. Always check the exported messages, headers, and attachments before deleting or moving the original data.
Ans. Yes, a compatible bulk conversion tool can export multiple emails in one process. The manual method may require additional steps to import and organize large email collections.
Ans. These details are part of the email message data and can be retained during MBOX conversion. However, the results depend on the source data and conversion method. Verify important email properties after export.
Ans. Yes, if the archived emails are accessible through Mailbird or its stored mailbox data, you can export them using a compatible method. Make sure to include the required folders during the export.
Ans. Check the source mailbox for duplicate messages before conversion. You can also use a conversion tool with a duplicate-removal option, if supported, to avoid exporting repeated emails.
Ans. Yes, you can process multiple accounts separately and save their emails in individual MBOX files. Use clear file names based on account names or departments to keep the archives organized.
Ans. If the original server is unavailable, you need access to the locally stored Mailbird email data. You can export accessible messages from the local data using a compatible method. Emails that are not available locally may not be recoverable through server-based migration.
Ans. Yes, if your selected conversion tool supports date filtering, you can specify a start and end date to export emails from a particular period.
Ans. Keep a backup of the original Mailbird data, use a compatible export method, and verify email counts, attachments, headers, and folder contents. Test the process with a small mailbox before exporting all business emails.
About The Author:
Simran Bhatia is a technical content writer engaged in writing clear, concise, and SEO-optimized content. With a background in computer science and a passion for writing, I thrive to deliver complex technical content in simple layman terms.
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