Most companies use a service to send their newsletters. You should be able to find the IP address from the email headers and then find the abuse email for that company. Email them, tell them you are unable to unsubscribe and their customer is thus sending you spam. Attach the email headers and 90% of the time they will take action (at least from my informal observation when I used to do this).
This is where I’m at. If I push it any more, she will turn off wifi on her phone and complain.
I’ve tried getting her to move to my hosted email instead of gmail, but she refused. She’s been wanting an Alexa speaker and even has the kids on board. That’s where most of my energy goes for picking my battles at this stage.
Gotta protect workers from those woke businesses that provide water breaks!
/s
I use DuckDuckGo at home, but at work it’s blocked. I’ve argued for it to be unblocked but to no avail. I use Startpage at work because it appears to have the same results as Google but also lets you view images anonymously when possible.
This browser is helpful on iOS because it can run Firefox or chrome extensions. Ublock origin works great. I don’t see any ads.