Hi, sorry I didn't make this clear.

Blocking is not an option. Gmail actually doesn't have such feature to let you block some senders, the "block" button in Gmail is just send those emails to Trash folder when receive them, which didn't help in my case, the email still goes to my account, and there are too many of them.

(have updated the original post)

https://support.google.com/mail/answer/8151?hl=en&sjid=17255...