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.P7Z File Extension

A .P7Z file is a S/MIME Compressed Email Message, created by N/A.

Open with Mozilla Thunderbird. Available for Linux, Windows, and Mac.

What is a .P7Z file?

A .P7Z file is a type of file used to store email messages in a compressed format. This file format uses the S/MIME (Secure/Multipurpose Internet Mail Extensions) standard, which helps to secure and compress email messages. The compression is done using zlib, a software library used for data compression. Zlib compression reduces the size of the email messages, making them easier to send and store.

The .P7Z file can contain one or more parts of an email message, such as the text, attachments, and other components, all compressed into a smaller file size. This is particularly useful for reducing the amount of data transfer needed when sending emails with large attachments or multiple parts.

To open a .P7Z file, you can use several email programs that support this file format. Some of the most common programs include: 1. **Mozilla Thunderbird** - A free and open-source email client that supports many email formats, including .P7Z files. 2. **Microsoft Outlook 365** - A popular email client that is part of the Microsoft Office 365 suite, known for its extensive features including support for various email formats like .P7Z. 3. **PostBox** - An email client that offers powerful email organization, search, and management features, and can open .P7Z files. 4. **Apple Mail** - The default email client included with macOS (Apple's operating system), which supports a variety of email formats, including .P7Z files.

These programs allow you to view, manage, and use the contents of .P7Z files just like any other email messages, but with the added benefits of compression for easier handling and storage.

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