Sanjay Jain wrote:

How can I quickly convert / create a Calendar Invite / Meeting Request
from a Mail so that all mail recipients are invited and the content on
the mail is pasted in the invite

While you can easily drag a mail message to the calendar to open a new
appointment window (which will include your mail message as text in the
notes pane of the appointment), there's no way I know to have Outlook fill
in the message recipients as attendees.
--
Brian Tillman [MVP-Outlook]