Junk e mail is also known as

Junk email is also commonly known as:

1. Spam
2. Unsolicited Commercial Email (UCE)
3. Unsolicited Bulk Email (UBE)
4. Junk mail
5. Spam mail
6. Phishing emails
7. Scam emails
8. Chain letters
9. Chain emails
10. UBE (Unsolicited Bulk Email)

Note that some of these terms may have slightly different connotations or be used in specific contexts, but they all generally refer to unwanted, unsolicited, and often annoying or malicious emails.