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185.242.3.33 has a threat confidence score of 40%. This IP address from The Netherlands (AS60223, Netiface Limited) has been observed in 9 honeypot sessions targeting SMTP protocols. First observed on March 14, 2026, most recently active March 20, 2026.
Automated SMTP interaction performing a minimal capability check by issuing EHLO followed by a STARTTLS upgrade request and immediately terminating the session. This pattern is commonly associated with internet-wide scanners, security research crawlers, or opportunistic bots verifying whether an SMTP service supports encrypted communication. The absence of authentication attempts or message submission indicates reconnaissance or service fingerprinting rather than active abuse.