Spam detection software, running on the system "server-vie001.gnuweeb.org",
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:  [ 此电子发票由51发票平台交付，邮件由系统自动发送，请勿直接回复
   ] 尊敬的顾客，gwml@vger.gnuweeb.org您好！ 您的电子发票已成功开具。
   您可以检查发票的真实性并查看所有保存的发票。 同时，如果您遇到链接无效、取票码无效、发票下载打印、发票丢失等问
   [...] 

Content analysis details:   (5.5 points, 5.0 required)

 pts rule name              description
---- ---------------------- --------------------------------------------------
 0.0 RCVD_IN_ZEN_BLOCKED_OPENDNS RBL: ADMINISTRATOR NOTICE: The query
                             to zen.spamhaus.org was blocked due to
                            usage of an open resolver. See
                            https://www.spamhaus.org/returnc/pub/
                            [5.180.44.50 listed in zen.spamhaus.org]
 1.3 RCVD_IN_VALIDITY_RPBL  RBL: Relay in Validity RPBL,
                            https://senderscore.org/blocklistlookup/
                            [5.180.44.50 listed in bl.score.senderscore.com]
 0.9 RCVD_IN_MSPIKE_L3      RBL: Low reputation (-3)
                            [5.180.44.50 listed in bl.mailspike.net]
 0.0 RCVD_IN_DNSWL_BLOCKED  RBL: ADMINISTRATOR NOTICE: The query to
                            DNSWL was blocked.  See
                            http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block
                             for more information.
                            [5.180.44.50 listed in list.dnswl.org]
 1.0 SPF_SOFTFAIL           SPF: sender does not match SPF record (softfail)
 0.0 HTML_MESSAGE           BODY: HTML included in message
 0.1 MIME_HTML_ONLY         BODY: Message only has text/html MIME parts
 0.0 URIBL_ZEN_BLOCKED_OPENDNS ADMINISTRATOR NOTICE: The query to
                            zen.spamhaus.org was blocked due to usage
                            of an open resolver. See
                            https://www.spamhaus.org/returnc/pub/
                            [URIs: 51fapiao.cn]
 0.0 RCVD_IN_MSPIKE_BL      Mailspike blacklisted
 0.0 FROM_EXCESS_BASE64     From: base64 encoded unnecessarily
 1.3 RDNS_NONE              Delivered to internal network by a host with no rDNS
 1.0 TVD_SPACE_RATIO_MINFP  Space ratio (vertical text obfuscation?)

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.