We suggest to raise this directly to our postmaster, you may send an email to firstname.lastname@example.org with a short summary of email issue together with your account details (Customer ID/Username) and the affected E-mail address
*.gov.au are blocked (Using Thunderbird, Web mail etc.)
*.Yahoo.com emails blocked.
*.Hotmail.com are blocked
How do you fix the issue at TPG's end to stop major email domains blocking our emails?