Microsoft outlook is the oldest
personal IM from Microsoft. The IM comes with every genuine Microsoft suite.
The journey started with the
inception of Windows 97 in the year 1997. Before this, Outlook used to exit but
with Microsoft Exchange server 5.5 which was pretty inefficient. Outlook came
with this 97 suite offering very basic features like emailing, contacts,
calendar, notes, to name a few. Even though the features were limited and
basic; Outlook 8.0 version for Windows 97 was a complete PIM to meet the
business and personal requirements for a variety of sectors. Microsoft always
came up with outstanding features – be it its Windows versions or Outlook PIM
versions.
Some useful websites for further reading:
https://en.wikipedia.org/wiki/History_of_Microsoft_Office
https://recall-email.com/how-to-unsend-in-outlook/
https://en.wikipedia.org/wiki/Microsoft_Outlook