Help remove domain from being reported as SPAM & find a bug/hack in the exchange email server if any

Job ID: 34073979

Budget: $30 – $250 USD

My exchange email from Go daddy outlook seems to have become compromised.
Need help to review all setting and catch the potential issue that would be causing this as I am getting multiple ' Mailer Delivery System' emails that I have not sent. Also need fixing of the domain from being reported as spam.
Related categories: Microsoft Exchange GoDaddy