So you received an email like this –

Good afternoon .
I received mail from the taxation office.
Are you the holder of domain [your domain]?
They erroneously accrued interest for me and you.
They sent me this document:https://am.ato.gov.au/amsupport/pages/welcome.htm
Did you receive this document?

I am contacting you to solve this problem, because I had never worked in your company.
What should we do? Please answer me as soon as you read the document. My name is Florence.
Best Regards,

So this is dressed up to look like someone is emailing you about a false tax debt and they use what looks like a real ATO link…but if you hover over the link, you will see it points to some other site entirely.

Delete it! Do not click the link!