Files with a .msg extension are often Outlook email messages. we can convert this to a text based mbox format using msgconvert:
msgconvert mymail.msg
This will produce mymail.eml which can be viewed with any text editor
Assume we have an email in EML format. To read it in a pretty manner use Sublime Text 3 and downloaded and activated the “EML Reader” extension:
https://github.com/13Cubed/EmailHeader
Open the EML file and activate Email Header syntax:
