File Extension Database

Open RFC822 File

The RFC 822 file standard, which stands for 'Request for Comments', describes and develops a format related to e-mail messages, and together with the standard that describes the protocol called RFC 821, they follow the mail exchange in a robust, reliable and efficient way, thus defining the SMTP protocol.

The RFC 822 file standard establishes that each message is divided into two fundamental parts:

Envelope: which contains all the information necessary for the message to be transmitted and delivered to the recipient, such as message format, writing point, binary header, etc.
Content: which is the information that must be delivered to the recipient, consisting mainly of lines of text. However, a special filter can be used for inserting images and other multimedia.

The RFC822 file standard is directly related to the EML file extension that contains the body of the message, along with the subject, sender, recipient, and date of the message.

It should be noted that the RFC822 standard has the latest revision, the one issued in August 1982, and since then it has been used by most email software packages, both at the server level and at the client level.

In conclusion, RFC822 is not a file, but a standard that defines a protocol that in turn establishes the basis for building a type of file, specifically EML.

For more information, you can refer to the following page:

RFC822

How Can I Open RFC822 File on Windows

We researched and learned that the best way to open RFC822 file is to find a RFC822 file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a RFC822 file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open RFC822 file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as RFC822 file opener then try to search online for "RFC822 viewer", "application to open RFC822 file" or "open RFC822 file" queries in the search engine you like.
Install the application you found and check if it can open RFC822 file

How Can I Open RFC822 File on Mac OS

We recommend to find a RFC822 file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a RFC822 file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with RFC822 file.
If you know the Mac OS application which can work as RFC822 file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open RFC822 file in it.
If you don't know the application which can open RFC822 file then try to search for "RFC822 viewer", "application to open RFC822 file" or "read RFC822 file" queries in the online search engine you like.
Install the application you found and check if it can read RFC822 file

How Can I Open RFC822 File on Android

If you downloaded a RFC822 file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded RFC822 file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "RFC822".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "RFC822 viewer", "RFC822 file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open RFC822 File on iPhone or iPad

To open RFC822 File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the RFC822 file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "RFC822". This way you can find apps which can open RFC822 files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "RFC822 viewer" or "RFC822 file" online in your favorite search engine.