: High-volume delivery of unsolicited marketing.
These lists are primarily traded or shared in "underground" forums for several malicious purposes:
: Indicates these aren't public relays, but rather accounts belonging to businesses, individuals, or web hosts. 100 smtp private fresh.txt
: Cybersecurity researchers often "leak" fake lists to track and identify bad actors. How to Protect Your Own SMTP Server
: Ensure all SMTP traffic is encrypted to prevent credential sniffing on public networks. : High-volume delivery of unsolicited marketing
: Use Multi-Factor Authentication for all administrative and user email accounts.
: Sending attachments or links that infect the recipient's computer. The Risks of Using Compromised SMTPs but rather accounts belonging to businesses
: The protocol used to send emails across the internet.