this is a recurring problem for me.
i can only think that it is an issue for me as the phone I use belongs to an American company and routes everything through the US.
i need a solution for this as it really is painful to have to login to TPG mail when I want to forward or reply or just send an email.
@fostered . The TPG mail server detects if the user's ip address is from overseas so that would be the problem when at work.
When not at work (on Telstra VPN), does your mail client work ok then?
Does whatismyip.com show the Telstra VPN as being in Australia?