One mistake... thousands of spam emails!!!

I signed up to Alibaba a month or so back, thinking it would be a legit website and not sell my emails to spammers but it appears I am wrong. It could be something else but I had read someone else received spam after signing up so I can only assume it's them.

I'm getting about 25 spam emails a day... all go into my Gmail spam box but occasionally I get proper emails end up in the spam box. So I liked to keep it clear.

All of the spam emails are from different email addresses and a whois lookup on the domain shows they are all registered with different companies.

Anyone know if I can stop this without having to make a new email? As it's coming from different domains I can't just block it. OK, so they go to my spam box but I would rather not get them at all!

Any ideas?

No way to change the email on the account?

Could but I assume my email is already circulating the various spam email lists by now!