Create calendar event from an email using Mail Mac application
Download "mail2calendar.zip" Unzip it. Copu mail2calendar.workflow into ~/Library/Services/ folder
Open Finder, click on Go and then on Go to Folder or Open Finder, press [Shift][Command][G] then type ~/Library/Services/
Double click on mail2calendar.workflow file and then edit the line
tell calendar "CHANGE ME WITH THE NAME OF YOUR CALENDAR"
with the name of your calendar
For example
tell calendar "Home"
save.
Now opena mail, select an email then click on Mail, Services mail2calendar.
Have a good time!