A user complained that a designated Trusted Sender is still being treated as a SPAMMER.  Meaning that the SPAM score from the Trusted Sender's message rated high enough (barely) to be moved to junk.  The kicker was no DKIM record.  See the header below.

I thought that a Trusted Sender was just that.  The Trusted User could send you anything short of a virus and the message would pass.  Please explain the use of Trusted Sender.

X-AuthUser: tod@todcan.com
X-MessageSniffer-Identifier: c:\SmarterMail\Spool\proc\work\67156486072.eml
X-GBUdb-Analysis: 0, 23.83.209.22, Ugly c=0 p=0 Source New
X-MessageSniffer-Scan-Result: 0
X-MessageSniffer-Rules: 0-0-0-32767-c
X-Declude-Sender: tod@todcan.com [23.83.209.22]
X-Declude-Spoolname: 67156486072.eml
X-Declude-RefID:
X-Declude-Note: Scanned by Declude 4.12.11
X-Declude-Scan: Incoming Score [-1] at 18:22:33 on 17 Feb 2020
X-Declude-Tests: ROUTING [4], HAM-INDICATOR [-11], FILTER-SPAM [10]
X-Country-Chain: UNITED STATES->destination
X-Declude-Code: 2000011f
X-HELO: bonobo.birch.relay.mailchannels.net
X-Identity: 23.83.209.22 | bonobo.birch.relay.mailchannels.net | todcan.com
X-SmarterMail-Spam: DK [None]: 0, DKIM [Fail]: 30
X-SmarterMail-TotalSpamWeight: 30 (Trusted Sender - User, failed DKIM)