Searching for files named usually leads to lists of Simple Mail Transfer Protocol (SMTP) server credentials that have been compromised or "scraped" for illicit use.
: Indicates these aren't public relays, but rather accounts belonging to businesses, individuals, or web hosts. 100 smtp private fresh.txt
: Use complex, unique passwords for every mail account. Searching for files named usually leads to lists
: Your own infrastructure can be flagged if you are caught connecting to these compromised nodes. but rather accounts belonging to businesses
: Accessing a private server without authorization is a violation of the Computer Fraud and Abuse Act (CFAA) in the US and similar laws worldwide.