Dynamically cases are not creating when incoming mail comes in crm inbox

Thank you so much every one ,I appriciated your support ,

I came with one issue that related to Case creation when incoming mail comes into CRM ,
automatically CASE has to create ,but this is happening at time, cases are creating when cron job started and all incoming mail are imported in CRM inbox ,after that if I drop any incoming mail to test@gmail.com from mail id sandeep@gmail.com ,I able to see my mail in CRM inbox but CASE is not creating ,

Here is AOP enabled shonw like below,

inbound mail configaration shown below

and cronTab is shown below

servre time also same ,

I did not undertand why at time cases are creating and after that why case is not creating when any new incoming mail comes ,
I have done 50% but i was struggling last few days please help on it …

I have enabled AOP and I did repair also.

when I started cronset all incoming email are imported and cases has been created after some time if I send mail to crm ,that mail is showing in CRM inbox but case is not creating automatically and crontab running every 1 min ,

plz some one help on it ,what I have to any one sugguest me please …
crm version : 7.11.15

Thanks
Sandeep

Could any one help on it please ?