Spam detection software, running on the system "simtk-server.stanford.edu", has identified this incoming email as possible spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: 您好，来信我已收到！ Content analysis details: (8.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 URIBL_BLOCKED ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [URIs: qq.com] -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [162.62.63.194 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (853819936[at]qq.com) 0.7 MIME_HTML_ONLY BODY: Message only has text/html MIME parts 0.0 HTML_MESSAGE BODY: HTML included in message 0.8 BAYES_50 BODY: Bayes spam probability is 40 to 60% [score: 0.5000] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 0.4 HTML_MIME_NO_HTML_TAG HTML-only message, but there is no HTML tag 1.0 FROM_EXCESS_BASE64 From: base64 encoded unnecessarily 1.0 RDNS_DYNAMIC Delivered to internal network by host with dynamic-looking rDNS 2.0 HELO_DYNAMIC_IPADDR Relay HELO'd using suspicious hostname (IP addr 1) 2.5 NO_FM_NAME_IP_HOSTN No From name + hostname using IP address The original message was not completely plain text, and may be unsafe to open with some email clients; in particular, it may contain a virus, or confirm that your address can receive spam. If you wish to view it, it may be safer to save it to a file and open it with an editor.