MAILHOST File Extension

MSN Mailhost Settings Format
- File Type mailhost
- Developer Microsoft
- Popularity
- Application MSN Explorer
- Category Settings Files, Email Program Files
What is a MAILHOST file?
Files with the MAILHOST extension are associated with MSN Mailhost Settings Format and are categorized as Settings Files and Email Program Files, making up 1240 files.
The MSN Mailhost Settings Format (MAILHOST), created by Microsoft, is one of file format they developed, and they also built 242 programs to support them.
MAILHOST files are supported by Windows. When working with MAILHOST files, you can rely on 2 programs, including MSN Explorer and Microsoft Windows.
How to open a MAILHOST file?
If you can’t open a MAILHOST file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.
MSN Explorer and Microsoft Windows stand out as the preferred programs to manage MAILHOST files effectively. To get the latest version of MSN Explorer, open the Microsoft website where a universal installer for all operating systems is available.
When you finish installing MSN Explorer, the system will automatically launch MAILHOST files with it.
Set MSN Explorer to open MAILHOST by default
Change default apps on Mac
- Right-click or use Control + Left-click on the desired MAILHOST file to access the file’s context menu;
- Choose "Open in Application" and click "Other";
- At the bottom of the window, you will see the "Enable" menu. It is already set to the default option, "Recommended Programs";
- Within this menu, select "All Programs" and then search for MSN Explorer. Check the box next to "Always open in app" to make it the default program.
Set default programs for Windows
- Take the first step by right-clicking on your MAILHOST file. Next, select "Open With" and then choose "Choose another app" from the available options;
- Find the MSN Explorer application in the pop-up window and select it as your preferred program;
- Select the "Always use this application" check box and click "OK" to save your selection as the default application for opening MAILHOST files.
Easy MAILHOST Troubleshooting
When facing challenges with MAILHOST files, simple adjustments in your software can often solve the problem. Find helpful troubleshooting guidance below.
How do I know if my MAILHOST file has been damaged?
MAILHOST settings files that have become corrupted may display one or more of the following symptoms:
- Error alerts occur when actions are performed on the file;
- When opening the file, errors occur or the inability to access its contents;
- Unexplained MAILHOST file size inflation;
- MSN Explorer or other programs stop responding or crash when trying to handle the file;
Why does MSN Explorer quit or crash unexpectedly?
Lack of software updates is a possible reason behind MSN Explorer crash. Keep your Microsoft products up to date by installing the latest updates.
Restarting your computer is often an effective solution to resolve various common problems. Therefore, it is recommended to do so before making any changes to the software configuration.
What methods can be used to repair a damaged MAILHOST file?
In a data recovery program, open the damaged MAILHOST file and select the "Repair" menu option. Allow the recovery process to complete, which will automatically repair the damaged settings files.



