I just have a "Report Spam" icon, with no choice to differentiate between the two.
Aside, I've been having a TON of very similar spam emails getting through Google's spam filter, and even marking them as spam doesn't seem to do anything. It's been going on for months at this point. I'm close to just closing that Gmail account because I have no idea what to do about getting close to 10 spam emails per day straight into my inbox in a way Google seemingly can't fix.
It's super obvious spam too. "tHe IRs hs a REFUND for u" level stuff.
My grandfather has been dead for over thirty years now, he still gets junk mail, his data is still on all the people finder sites.
Helps everyone else too
Starting in 2003 and up until 2016, I used a catch-all e-mail address and would sign up for everything using a custom e-mail address. I wouldn't even do in the form of "[email protected]", I'd just do "[email protected]".
The only spam e-mails I got that were e-mail addresses I used were from a couple shady cryptocurrency mining pools, a forum that got hacked, and the e-mail address I used on USENET. I also got spam sent to <random hex digits>@mydomain and lots of <two random dictionary words>@mydomain.
Knowing how much spam came from my USENET e-mail address (which I eventually changed and black-holed), I wonder how many spammers are scraping usernames from reddit and just spamming [email protected].
For more info, the technique is called greylisting https://postgrey.schweikert.ch/
greylisting is responding with a temp error under the assumption that most spam won't retry on temp errors, which isn't the case for most spam anymore.
real bounces are permanent errors.
As you say these days spammers will retry, but its an approach that still has value, because in the period between the initial delivery-attempt (which is rejected) and the final one (where it would be attempted) it is more likely that the sender has already appeared on DNS-based blocklists.