PMX File Extension

What is PMX file?

PMX files are used by Pegasus Mail, a email client application.

Contents of PMX files

Files with PMX extension store messages ready to be sent. In practice, PMX contains a list of messages in the outbox sorted by the PMX file generation timestamp. This means that the first on the list will be the oldest not yet sent message.

Can I sefely delete a PMX file?

PMX are generated by Pegasus Mail automatically each time the used writes and send an email message. After the message has been successfully sent, the PMX is automatically deleted. Sometimes however it can happen that despite the email has been successfully sent, PMX file is not deleted. Such file is called a “ghost” and remains in the outbox. In this case user can manually delete the PMX file by accessing it path on disk.

Programs which support PMX file extension

Below is a table that list programs that support PMX files. Files with PMX extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Updated: 12/14/2023

How to open file with PMX extension?

Problems with accessing PMX may be due to various reasons. On the bright side, the most encountered issues pertaining to Pegasus Mail Outgoing Message files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. We have prepared a listing of which will help you resolve your problems with PMX files.

Step 1. Get the Pegasus Mail

The most common reason for such problems is the lack of proper applications that supports PMX files installed on the system. This issue can be addressed by downloading and installing Pegasus Mail or different compatible program, such as Aid4Mail. Above you will find a complete listing of programs that support PMX files, classified according to system platforms for which they are available. The safest method of downloading Pegasus Mail installed is by going to developer’s website (David Harris) and downloading the software using provided links.

Step 2. Check the version of Pegasus Mail and update if needed

You still cannot access PMX files although Pegasus Mail is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. This can be one of the causes why PMX files are not compatible with Pegasus Mail. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Pegasus Mail.

Step 3. Associate Pegasus Mail Outgoing Message files with Pegasus Mail

If the issue has not been solved in the previous step, you should associate PMX files with latest version of Pegasus Mail you have installed on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Selecting the first-choice application in Windows

• Right-click the PMX file and choose Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where Pegasus Mail is installed. Now all that is left is to confirm your choice by selecting Always use this app to open PMX files and clicking OK.

Selecting the first-choice application in Mac OS

• By clicking right mouse button on the selected PMX file open the file menu and choose Information
• Find the Open with option – click the title if its hidden
• Select the appropriate software and save your settings by clicking Change all
• A message window should appear informing that This change will be applied to all files with PMX extension. By clicking Continue you confirm your selection.

Step 4. Ensure that the PMX file is complete and free of errors

Should the problem still occur after following steps 1-3, check if the PMX file is valid. It is probable that the file is corrupted and thus cannot be accessed.

1. The PMX may be infected with malware – make sure to scan it with an antivirus tool.

If the file is infected, the malware that resides in the PMX file hinders attempts to open it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the PMX file is indeed infected follow the instructions below.

2. Check whether the file is corrupted or damaged

Did you receive the PMX file in question from a different person? Ask him/her to send it one more time. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. If the PMX file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

Some files require elevated access rights to open them. Log in using an administrative account and see If this solves the problem.

4. Make sure that the system has sufficient resources to run Pegasus Mail

If the systems has insufficient resources to open PMX files, try closing all currently running applications and try again.

5. Verify that your operating system and drivers are up to date

Latest versions of programs and drivers may help you solve problems with Pegasus Mail Outgoing Message files and ensure security of your device and operating system. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle PMX files.

Do you want to help?

If you have additional information about the PMX file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on PMX file.