Issue in Approving a SC through Offline Approval

Hello Experts,

We are in implementing SRM 7.13 and using the standard offline Approval process of approving the SC.We are able to trigger a mail containing the item details and can open the mail in web browser.When we select "Approve by email" option, we get Internet explorer has stopper working and it stop the process in that step.

Moreover it creates a new mail in my outlook and if i send that email , it comes to the inbound mail but does not process the approval request and SC remains in Awaiting approval status.

Please find the below screen shots for more details and help me with your suggestions.

Thanks,

Ankur Goyal