Some spam probably does this, some probably does not. As mentioned, tracker pixels can also confirm, but either way if the message was delivered to your inbox with no bounceback, even without opening it the sender can infer it is active.
That said, a “legit” company domain like StubHub should be safe to click on (as long as you are careful it’s not a spoofed domain) and unsubscribe.
In EU at least they’re required by law to have working unsubscribe links that actually unsubscribe you, otherwise they risk getting huge fines, i understand that in California things are not too far from this but no idea about the details
This is the case across the whole US, as part of some legislation called the “CAN-SPAM act”. I think the person you’re replying to is talking about fake unsubscribe links in malicious emails.
Never click an unsubscribe link.
They are used to confirm your email address is active, which sell for more to spammers.
Just mark the sender as spam, if your mailserver is any good, it should auto block senders whom are tagged like that too much.
Some spam probably does this, some probably does not. As mentioned, tracker pixels can also confirm, but either way if the message was delivered to your inbox with no bounceback, even without opening it the sender can infer it is active.
That said, a “legit” company domain like StubHub should be safe to click on (as long as you are careful it’s not a spoofed domain) and unsubscribe.
Good email clients block external images by default.
Great email clients let you view external images but block trackers. FairEmail does this for example.
In EU at least they’re required by law to have working unsubscribe links that actually unsubscribe you, otherwise they risk getting huge fines, i understand that in California things are not too far from this but no idea about the details
This is the case across the whole US, as part of some legislation called the “CAN-SPAM act”. I think the person you’re replying to is talking about fake unsubscribe links in malicious emails.
deleted by creator
Disable remote content in your email settings.
It’s extremely unlikely that any email provider would block a big service like Stubhub.
If it’s a sender you’ve done business with and just don’t want emails from any more then the courteous thing to do is use the Unsubscribe link.