該EMLX文件擴展名是用於實現和發展了由蘋果一個文本文件。它與蘋果電子郵件和蘋果的Mac OS X中通常保存為純文本文件中使用,EMLX文件也可以使用任何文本編輯器中查看。蘋果Mac OS X是一個操作系統是基於Unix的。 UNIX是一個操作系統,有利於多用戶和多任務處理。它是利用工作站,移動設備和各種服務器。原本打算用作工作台一個程序員,它出名到誰添加了其他功能,以軟件和共享他們與其他感興趣的個人不同的用戶。在Mac OS X作業系統中顯示的電子郵件程序是一個原始明年其NeXTMail這是NeXTSTEP的操作系統的一部分創建的。蘋果在其抬升功能的願望獲得了NeXT之後,以後用它這是郵件應用程序的OS X。
Also called as Mail.app, Apple Mail is an email application that is integrated on Mac OS X computers. It was originally created and launched by NeXT, which was called as NeXTMail by then, but adapted by Apple for OS X operating system. This program mainly relies on three types of protocols which are SMTP, IMAP and POP3. It also supports other instant messaging applications such as AOL, Yahoo! Mail, Gmail and even MobileMe and Exchange through IMAP. The latest version available for download is Mail version 5 which was first introduced with Mac OS X 10.7 or Lion. This version has new and enhanced features such as the fullscreen user interfact that is similar to iPad, a unique message search interface, group message option by Subject and the support for IMAP Yahoo! Mail and Microsoft Exchange Server 2010. Messages sent and received using this version are in plain text format, but there is an option to formal when using an email through the text edition tools.