Disable user enumeration commands within your mail transfer agent (MTA) configuration (e.g., Postfix, Exchange, or Exim).
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(currently at version 2.0.8 as of late 2024) is a professional on-premise vulnerability scanner developed by the Russian company Crayon . Smtp Scanner Hscan 1.2 Download
It was designed to scan IP ranges for open ports and known vulnerabilities, including SMTP relay issues. Documentation: Disable user enumeration commands within your mail transfer
18;write_to_target_document7;default0;5fd;18;write_to_target_document1a;_3RXuac-kHofDkPIPqKiO8Qg_20;c3f; including SMTP relay issues. Documentation: 18