After pressing run in the Scheduled Task. (Email Integration).
I got some errors in it.
So I edit in php.ini
Max post is 32mb and max upload is 32mb
Restart server. Now I got all working perfectly.
Each email create no larger than 20mb of storage so you don't get overload in php's memory which is 32mb max. (You may increase php memory but not recommended)
After next 3 days, it still showing new posts.
Great stuff!