I have send my reuest to technician many times,but it looks like the mail has been block by some policy.

The information is as below:

Dear Sender,

This is to inform you that message delivery is delayed to these recipients or distribution lists.

Your message(s) has not yet been delivered to the recipient, due to a temporary error condition
at the receiving end. We will continue to try delivery of the message(s) for the next 7 days.
You will receive a permanent error notification, if the message can't be delivered by that
time.