How to Import MBOX to Roundcube Webmail? Easy Steps
Published: May 16th, 2025 • 7 Min Read
Blog Summary: Do you want to import MBOX to Roundcube webmail account? Then this guide is for you. In this tutorial, we will learn the basic understanding of MBOX and Roundcube, from the advanced tips for the process of how we upload MBOX to Roundcube Webmail easily in simple steps.
What is an MBOX File and Roundcube Webmail?
MBOX is a file format mainly used to store email messages. Each MBOX file stores a collection of email messages in a single file, which makes it easier to back up or transfer email data from one platform to another.
Roundcube Webmail is a popular open-source webmail interface commonly used to access email accounts. It provides a user-friendly interface with multiple advanced features, making it a perfect choice for all webmail users.
Why Do Users Want to Import MBOX to Roundcube Webmail?
You can access your Roundcube webmail through your cPanel account. In simple words, we have to upload MBOX files to a cPanel account in bulk. Let’s understand the reasons why users choose Roundcube to manage their data:
- Email Migration: Switching to Roundcube from a different email client to get a more comprehensive email management experience.
- Backup Restoration: Transferring emails to Roundcube from a backup MBOX file.
- Data Consolidation: Consolidating data means putting all of your emails into one Roundcube account so you can access and manage it more easily.
Expert’s Tips for Uploading MBOX Files to Roundcube
There are some common troubleshooting issues faced by users when they try to import MBOX to Roundcube webmail account, such as file corruption, import errors, and email formatting issues. To avoid these issues, you can follow the tips and suggestions mentioned below:
- It is always suggested by experts and professional users to make a backup of your MBOX files before starting the process of importing MBOX to Roundcube webmail account.
- Always remember to check your MBOX file before uploading the MBOX to Roundcube to see if it is corrupted or not, which will prevent you from encountering errors in the process.
- Professional users split larger MBOX files into smaller parts, which will help to avoid the issues faced during the importing process.
How to Import MBOX to Roundcube Webmail Manually?
Here we will explain two methods to upload data files successfully. First, you can import data directly, and second, if you want to upload and open Thunderbird MBOX files, then try this method. Both ways are explained one by one:
- Start by logging into the Roundcube account.
- Create a new folder to import MBOX to Roundcube.
- Click on the “Three Dots” in the upper right corner.
- Select the “Import” option and click “Browse”.
- Select the MBOX files that you want to upload and click “Open”.
- Lastly, you successfully imported MBOX to Roundcube webmail.
If you have an MBOX file in Thunderbird, then follow this method. Here, you just have to connect a webmail account, and you can upload MBOX files to Roundcube webmail easily.
#2: Connect Roundcube to Thunderbird Account
- Start your Thunderbird.
- Again, select the “Tools” using the “ALT” key.
- Head to the “Account Settings” option.
- Find “Account Action” and then “Add Mail Account”.
- Provide the account details of Roundcube.
- Also, provide IMAP details for configuration.
- Lastly, click on the “Finish” button to import MBOX to Roundcube process.
After connecting accounts, now head to the MBOX file and right-click on it >> find and select the “Move To” option and then choose the connected Roundcube account.
This method is good for those users who have limited data files, but if you have a large MBOX file to import into Roundcube, then you should go for the expert solution.
Manual Method Limitation
- Size Restrictions: Upload limits set by Roundcube can be exceeded by large MBOX files.
- Performance Problems: Manually importing a large number of emails might be difficult and prone to mistakes.
- Compatibility: The Roundcube version that is utilised might not be compatible with all MBOX files.
- No Filters: Manual methods don’t have filters and settings to upload selective data.
How to Import Multiple MBOX Files to Roundcube Webmail Directly?
For those users who have large and multiple MBOX files to import into Roundcube webmail, they should start using BitRecover MBOX file conversion software. This utility doesn’t take long to upload large and multiple files and also provides different settings that make the process smooth for all.
Benefits of Using this Pro Solution
- User-friendly Interface: Easy to use, recommended instructions help all users experience at ease.
- High Compatibility: Converts to several formats and supports MBOX files from several email clients.
- Effective Management of Large Files: Optimised speed and batch conversion allow speedy processing of large files.
- Data Integrity and Security: Provides safe data transfer and maintains email metadata.
- Advanced Features: More control over imports, preview capability, and selective conversion.
- Customer Service: 24/7 customer support is available, and updates are made available regularly to improve performance.
- Cost-effective Solution: Reasonably priced, with a free trial version offered.
How to Import MBOX to Roundcube Webmail Account?
- Firstly, download and install the software on your device.
- Now, select the files or folder option to upload MBOX files to Roundcube.
- Next, if you select an MBOX folder, then select the required files.
- After that, select “IMAP” as a saving option and enter the login details.
- Next, click on the “Convert” button and also enable batch mode if you have MBOX files in bulk.
- Lastly, you import MBOX to Roundcube webmail account successfully.
Comparison of the Pro and Manual Methods
| Methods | Pros | Cons |
| Manual Technique | Direct control and no need for additional tools | Time-consuming and does not support bulk import which can be a drawback |
| Pro Technique | Expert support, trustworthy Extra features with a user-friendly interface | Charge minimum cost |
People Also Ask {FAQs}
- Q: What is the simplest approach to import MBOX to Roundcube Webmail?
Ans: The Pro utility explained above in the blog is one of the simplest approaches, which has a user-friendly interface and advanced features for an effective and secure way to upload MBOX to Roundcube Webmail.
- Q: Can’t we upload a Thunderbird MBOX file directly into the Roundcube account without following the connecting method?
Ans: Yes, you can, but first you have to export Thunderbird MBOX files locally and then follow the direct method steps.
- Q: Is it possible to manually load MBOX files into Roundcube?
Ans: By signing into your Roundcube account, making a new folder, and using the import option to upload your MBOX files, you can manually upload MBOX files into Roundcube.
- Q: What are the common issues faced when importing MBOX data into Roundcube?
Ans: File corruption, import mistakes, and formatting problems with emails are common problems. Before beginning the import procedure, it is advised that you make a backup of your MBOX files and check them for corruption.
- Q: When manually importing MBOX files into Roundcube, are there any size restrictions?
Ans: Upload limitations set by Roundcube can indeed make manually importing huge MBOX files difficult. The process can also be difficult and prone to errors.
Conclusion
In this write-up, we explain the best strategies to import MBOX to Roundcube webmail account easily. By doing this task, your email management is improved since it centralises data in a simple interface. With its high compatibility, sophisticated functionality, and ease of use, the advanced MBOX Converter tool is the finest option for quick and easy operation. Choosing the professional approach or the manual, according to your preferences for a successful import process, depends on the user’s needs. I hope this blog provides you with complete knowledge of the process of how to upload MBOX to Roundcube.
