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OLM to MBOX Converter for Java Applications

Intuitive Java API to convert email files between formats. OLM to MBOX conversion code sample and its integration with Java projects.

Convert OLM to MBOX using Java API

Aspose.Email for Java provides an efficient and reliable solution for converting email files between various formats. It simplifies the process of email format conversion by providing a straightforward and efficient API. Try the concise and straightforward code sample that demonstrates the ease and efficiency of the email format conversion process. The code represents classes and methods for creating objects and manipulating them enabling developers to handle email data with ease and precision and achieve reliable and accurate results.

With the Java API, you don’t have to worry about complex algorithms or tedious manual work, saving time and effort for more important tasks to take your email processing applications to the next level.

How to Install Aspose.Email for Java Library

To start utilizing the capabilities of the powerful and feature-rich Java API is easy with one of the following actions:

  • download its latest version from Maven

  • install it within your Maven-based project by adding the following configurations to the pom.xml.

<repository>
<id>AsposeJavaAPI</id>
<name>Aspose Java API</name>
<url>https://repository.aspose.com/repo/</url>
</repository>
<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-email</artifactId>
<version>version of aspose-email API</version>
<classifier>jdk17</classifier>
</dependency>

In case of difficulties or questions regarding the installation process of the API, please visit the Installation section of our documentation .

How to Convert OLM Files to MBOX Format

Converting OLM files to MBOX format is a smart choice for users looking to enhance the accessibility and compatibility of their email data. OLM files, specific to Outlook for Mac, can be restrictive in terms of platform support. By converting them to MBOX, which is a widely-supported email format, users can open up possibilities for accessing their emails across various email clients and platforms. The converted files can be migrated from Outlook for Mac to another email client ensuring a smooth transition of email data for future management and organization. They can also be stored in MBOX format for backup allowing users to transfer and retrieve their emails in case of data loss or system failure.

Aspose.Email for Java is a powerful API that provides comprehensive functionality for working with email messages, contacts, calendars, and tasks in Java applications. To convert OLM files to MBOX format, the library offers the OlmStorage class used to open and access the content of an OLM (Outlook for Mac) file. The MboxrdStorageWriter initializes the writer for the MBOX storage and writes the contents to the MBOX file. The FolderInfo class represents a folder within the OLM file and makes it possible to manipulate its content. The MapiMessage class provides developers with a comprehensive set of functionalities to work with email messages programmatically, enabling them to efficiently manage, manipulate, and interact with email data within their Java applications. The MailMessage class is used to create an object representing an e-mail message. It allows to access message properties, such as subject, body, sender and recipients addreses, etc. With its methods, you can create, load and parse, modify, convert, save emails, or perform other manipulations with them. And, finally, the MailConversionOptions class provides options for converting MapiMessage to MailMessage. In the code sample below, these classes work together to read messages from the OLM file, convert them to MailMessage format, and write them to the MBOX file. For more information about the API high code features, please visit our reference resources .

Steps to Convert OLM to MBOX via Java

Aspose.EMAIL API makes it easy for the developers to convert OLM file to MBOX in just a few lines of code.

  1. Open the OLM file using the OlmStorage.fromFile method, providing the file path.
  2. Create a FileOutputStream for the MBOX file with the mboxFilePath.
  3. Initialize MboxrdStorageWriter with the FileOutputStream.
  4. Get the Inbox folder from the OLM file using the getFolder method, specifying the folder name as “Inbox” and setting the boolean parameter to true.
  5. Iterate through the messages in the Inbox folder using a for loop and the enumerateMapiMessages method of the FolderInfo object.
  6. Convert each MapiMessage to a MailMessage and add it to the MBOX storage using writer.writeMessage(msg.toMailMessage(new MailConversionOptions())) .

System Requirements

Aspose.Email for Java supports all major platforms and operating systems. Please make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with Java Runtime Environment for JSP/JSF Application and Desktop Applications.
  • Get latest version of Aspose.Email for Java directly from Maven .
 

Convert OLM to MBOX - Java

// Open the OLM file
OlmStorage olm = OlmStorage.fromFile(olmFilePath);
// Create a FileOutputStream for the MBOX file
FileOutputStream fileStream = new FileOutputStream(mboxFilePath);
// Initialize MboxrdStorageWriter and pass the FileOutputStream to it
MboxrdStorageWriter writer = new MboxrdStorageWriter(fileStream, false);
// Get the Inbox folder from the OLM file
FolderInfo folder = olm.getFolder("Inbox", true);
// Iterate through messages in the folder
for (MapiMessage msg : folder.enumerateMapiMessages()) {
    // Convert MapiMessage to MailMessage and add it to MBOX storage
    writer.writeMessage(msg.toMailMessage(new MailConversionOptions()));
}
 

What is OLM File Format?

The OLM (Outlook for Mac) file format is used by Microsoft Outlook for Mac to store email messages, contacts, calendars, tasks, and other data. It is a proprietary file format specific to Outlook for Mac, allowing users to archive and back up their email data for offline access and migration purposes.

What is MBOX File Format?

The MBOX file format is a standard format for storing and organizing email messages in a concatenated format within a single file. It typically consists of a collection of email messages, each separated by a “From” header, making it a common choice for archiving and transferring emails across different email clients and systems.

File Format Conversions supported by Aspose.Email for Java

Aspose.Email for Java offers an extensive set of file format conversions designed to seamlessly handle emails, contacts, calendars, attachments. It empowers developers to effortlessly manipulate and transform data to meet the diverse needs of their applications. Implementing file format conversions in email applications facilitates their interoperability and elevates efficiency. Overall, the library supports conversion from EML , EMLX , ICS , MBOX , MHTML , MSG , OFT , OLM , OST , PST , VCF to other formats elevating user experience.
  • OLM to MBOX Conversion Live Demos

    Other Supported Conversions

    You can also convert OLM into many other file formats including few listed below.

    OLM TO EML (Outlook Email Messages)
    OLM TO EMLX (Apple EMLX Format)
    OLM TO HTML (Hyper Text Markup Language)
    OLM TO ICS (iCalendar)
    OLM TO MHTML (Web Page Archive Format)
    OLM TO MSG (Outlook & Exchange Format)
    OLM TO OFT (Outlook Email Templates)
    OLM TO OST (Offline Storage Files)
    OLM TO PST (Outlook Personal Storage Files)
    OLM TO VCF (Virtual Card Format)