Open RPMSG File

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EML File

Files with EML file extension store email information according to RFC 5322 Internet Message Format specification. EML is one of the most popular formats for storing individual e-mails. This format is available free for use and has a publicly available specification. Information in EML files is stored in plain text which makes it easy to open EML files in many different applications. You can open EML file in following e-mail clients:

  • Microsoft Outlook Express
  • Microsoft Outlook
  • Microsoft Entourage
  • IncrediMail
  • Apple Mail
  • Mozilla Thunderbird

You can also open EML files using an internet browser. You can do it by changing EML file extension to MHT and opening the resulting file. Microsoft Internet Explorer, Mozilla Firefox and Opera can open MHT files. MHT files could also be opened by Microsoft Word, WPS Writer, WizHTMLEditor, and BlockNote. If you don’t have any of the above applications and just want to quickly open EML file to see what is inside, you can use any available text editor. Since EML file is a plain text you will be able to see an entire message.

EML file typically consists of a header and body of the message. Message header contains important fields like e-mail recipients, e-mail sender, e-mail subject, and date of e-mail. Also, header contains important information to help applications parse EML file. This includes content-type, mime version and x-mailer. Message body contains may contain multiple elements with different content types. This allows one EML file to store not only message body but also file attachments. Attachments in EML file are stored in base64 format. E-mail content in EML file can be stored in plain text or HTML.

Since EML file can contain attachments it is important not to open EML files from untrusted sources. Certain file attachments could be dangerous and may infect the computer when executed.

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RPMSG Quick Info
  Rights-Managed Email Object Protocol File
Opens with
  Microsoft Outlook
  Microsoft Outlook Web App (OWA)
  Azure Information Protection viewer