Microsoft Internet Mail and News 1.0 was released in 1996 with Internet Explorer 3.It has a similar layout to Outlook Express 5. Outlook Express 6 is the last version of the software with Outlook branding. Internet Explorer 5 required Outlook Express 5 to save Web Archive files (see MHTML). Nearly two years later, a similar system, using a similar method of adaptive filtering, appeared as a feature of Microsoft Outlook. It was speculated on various websites and newsgroups at that time, that the feature was not stable enough for the mass market. Like Internet Explorer, Outlook Express 4 can run on Mac System 7, OS 8, and OS 9.Īt one point, in a later beta version of Outlook Express 5, Outlook Express contained a sophisticated and adaptive spam filtering system however this feature was removed shortly before launch. The Windows executable file for Outlook Express, msimn.exe, is a holdover from the Internet Mail and News era. In 1997 the app was changed and renamed as Outlook Express and bundled with Internet Explorer 4. Internet Mail and News handled only plain text and rich text (RTF) email, lacking HTML email. Version 2.0 was released at the end of 1996. This add-on precedes the Internet Mail profile for Microsoft Exchange 4.0 bundled in Windows 95.
Version 1.0 was released as Microsoft Internet Mail and News in 1996 following the Internet Explorer 3 release.