How to Open RPMSG Files? – [100% Verified Method]

You are trying to open an RPMSG file, but instead of opening, it shows errors like:

• Windows cannot open this file.
• RPMSG file not opening in Outlook
• You don’t have permission to view this message.

These are the most common issues that users face whenever they have to deal with RPMSG files. But with the right approach, you can avoid them and will be able to access their content.

So, to help you out, the blog will guide you with proven ways to open and view RPMSG files on Windows, Mac, iPhone, Android, and Gmail.

What is RPMSG File? – Get Complete Information!

An RPMSG file stands for Restricted Permission Message. Outlook creates these files when a sender uses any of the following actions:

• Encrypt
• Do Not Forward
• Restricted Access
• Information Rights Management (IRM)

Microsoft Azure Rights Management helps users to secure email messages from unauthorized access. As a result:

• Users cannot open RPMSG files without proper permission.
• Actions like mail forwarding, copying, or printing may be restricted.
• Only the authorized email addresses can access the content of the file.

Cannot Open RPMSG File: Identify Why?

It is necessary to find the possible reasons that are preventing access to the RPMSG files to solve them immediately. Here is the list of the most common reasons:

• Incorrect email account or settings.
• Expired or revoked message permissions.
• Misconfigured or outdated Outlook application.
• iPhone users open it without Outlook/OME Viewer.
• The device is not compatible with IRM-protected files.
• Message viewing is blocked on Gmail or third-party email clients.

Top 5 Manual Methods to Open RPMSG Files!

After trying several methods, we have found that only the ones mentioned below are working. You can pick the best method applicable to your requirements for opening RPMSG files.

Method 1. Open RPMSG Files in Outlook Application

It is the simplest and direct solution to automatically decrypt RPMSG files to view their content. Here’s how to open RPMSG file in Outlook:

Step 1. Save the RPMSG file on your local system.

Step 2. Right-click on the file and Open with Outlook.

Step 3. It will start connecting to Microsoft Right Management Services.

Step 4. Outlook decrypts the message and opens it when you have valid permissions.

Method 2. View RPMSG Files in Outlook for Web (OWA)

You can also use the OWA to open protected email files in case you don’t have Outlook or are using outdated versions. Follow the given instructions carefully:

Step 1. Go to Outlook.com and Sign in with the email account.

Note: Use an email account that has valid permissions to open the RPMSG file.

Step 2. Drag or drop the file to the inbox folder.

Step 3. Click on the file to open it.

Step 4. It will authenticate your account and open the message in your browser

Method 3. Access RPMSG Files in Gmail

RPMSG files are the standard format of protected messages of Microsoft. As a result, Gmail users can’t open them directly. But you use the OME Viewer tool (web-based) to access files easily. Here’s how to open RPMSG file in Gmail.

Step 1. Access your Gmail account and locate the RPMSG attachment.

Step 2. Click on the file named message.html or encrypted message.html.

Step 3. It will redirect you to the secure portal of Microsoft.

Step 4. Sign in with your Google account and enter the OTP to proceed.

Step 5. It will open the message safely in your browser.

Method 4. Open RPMSG File on iOS Devices

iPhone users face challenges while opening the RPMSG files since their default Mail app can’t decrypt them. But with the right approach, you can open these files. Here’s how to open RPMSG file on iPhone devices.

Step 1. Go to the App Store and download the Azure Information Protection app.

Step 2. Navigate to the protected email or file once the app installation is completed.

Step 3. Select the AIP Viewer app to open the protected file when prompted.

Step 4. Tap on Share and choose the AIP Viewer app.

Step 5. Select a certificate or Sign in to proceed.

Step 6. Your protected file will open in the AIP Viewer after the authentication is completed.

Method 5. View RPMSG Files on Android Devices

Use the given steps to open the RPMSG files on your Android devices. Here’s how:

Step 1. Open the Google Play Store and download the Azure Information Protection app.

Step 2. Wait for the completion of the installation process. Then, navigate to the protected email or file.

Step 3. Select the AIP Viewer to open the file.

Step 4. Sign in or select the certificate in the prompted wizard.

Step 5. It will open the email or file after successful authentication.

Still Not Able to Open RPMSG Files? – Try these Quick Fixes Now!

You have tried all the above solutions but are still facing the same issue. Then make sure that you are not making the following mistakes.

• Use the correct email account: RPMSG files are locked to a specific recipient. So, ensure that you are using the correct email account.
• Outdated Outlook Application: The Information Rights Management fails in older versions. Always make sure that your application is up to date.
• Information Rights Management is Disabled: Verify that the IRM services are enabled in Outlook. If not, go to the trust center to enable it.
• Try the OWA to open RPMSG files: Outlook for Web is the best method to open protected email messages or files. It helps avoid compatibility issues in most devices.
• Clear cache data from the Outlook application: Sometimes, stored cached data creates hindrance in the app’s performance. Try deleting them to fix the issue.
• Expired or revoked file permissions: Since RPMSG files are encrypted files, their permissions are set for a limited period. So, ask the sender to re-grant the permissions if the file has expired or revoked permissions.

Conclusion

We have covered a detailed guide to open RPMSG files using the manual methods. By using them, you will be able to open files on Windows, Android, or iOS devices without any difficulties. However, if you are looking for a direct solution, then try the Recoveryfix MSG to PST Converter. The MSG Converter tool helps you convert these files into readily accessible formats in a few clicks.

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