On Fri, 14 Jun 2024, Bowie Bailey wrote:

On 6/14/2024 10:39 AM, Thomas Barth via users wrote:
 Hello,

 I would like to explain a sender what he can do to create an email that is
 not classified as spam.

 X-Spam-Status: Yes, score=6.248 tagged_above=1 required=5
  tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1,
 DKIM_VALID_AU=-0.1,
  DKIM_VALID_EF=-0.1, DMARC_PASS=-0.001, FONT_INVIS_MSGID=2.497,
  FONT_INVIS_NORDNS=1.544, HTML_FONT_TINY_NORDNS=1.514, HTML_MESSAGE=0.001,
  RDNS_NONE=0.793, RELAYCOUNTRY_BAD=2, SPF_HELO_NONE=0.001,
 SPF_PASS=-0.001,
  T_KAM_HTML_FONT_INVALID=0.01, T_SCC_BODY_TEXT_LINE=-0.01]

You can get the definitions directly from the rule files.  On my system, the updated rules are in /var/lib/spamassassin/3.004006/updates_spamassassin_org.

describe  RDNS_NONE   Delivered to internal network by a host with no rDNS
describe  FONT_INVIS_MSGID   Invisible text + suspicious message ID
describe  FONT_INVIS_NORDNS   Invisible text + no rDNS
describe  HTML_FONT_TINY_NORDNS   Font too small to read, no rDNS

You can also configure SA to include the rule descriptions in an X-Spam-Report header when the message is scored as "spammy". Take a look at config "report_safe 0".


--
 John Hardin KA7OHZ                    http://www.impsec.org/~jhardin/
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