@ jgordon4 I'm sorry to read that you being spammed. I know these suggestions may sound unusual, but have you done a virus scan in your network? Reset your email password?
Have you subscribed to any websites?
The spams you received, can you mark them as spam so that any email from those domains can be marked properly? Please check instructions on https://community.tpg.com.au/t5/Broadband-Internet/Possible-spam-email/m-p/38140/highlight/true#M145...
I understand that you know how to use email filtering, but for other people's benefit, please see https://community.tpg.com.au/t5/Broadband-Internet/Unwanted-e-mails/m-p/1712/highlight/true#M1959
Let us know once you have done tagging them as spam if there are any changes?
You could also mark it off via the email client, though we would prefer the post office. This is so any email from that domain will be monitored and treated as spam, by doing so you are not just protecting yourself from these spammers, but others as well.