hate mail
US /ˈheɪt meɪl/
UK /ˈheɪt meɪl/

1.
haatmail, haatpost
mail containing abusive, threatening, or insulting messages
:
•
The politician received a lot of hate mail after his controversial speech.
De politicus ontving veel haatmail na zijn controversiële toespraak.
•
She was shocked to find a piece of hate mail in her mailbox.
Ze was geschokt toen ze een stuk haatmail in haar brievenbus vond.