Changing e-mail address MT4 correspondence is sent to

I think my email account that I have had over 10 years has been hacked and I cannot log into it anymore, Pepperstone send me an account report daily.
I have opened a new email account and asked Pepperstone by email to send my reports and any other correspondence to the new address.

When I changed my MT4 password last time the new password was sent to my email address so I obviously do not want this to happen again until Pepperstone get back to me to say the new email address I gave them is ok.

Then I want to change my MT4 account password, I forget how to do this, can anyone tell me please?

Tools>Options then click on the Server tab

Yes you are right, thank-you.

Do you know if the new password is sent to the email address that my Broker communicates with me on?

Because I obviously do not want it sent there for the hacker to read.