I have found one in my own mailbox.
Here is a header for an email from a company called @mailsbestfriend.com that keep sending spam to my mailbox and the email shows in smartermail with 'Blocked Sender' next to the email address to confirm the sender is blocked, but instead of ending up in the junk folder is going to the inbox.
The headers show that Declude for some reason is whitelisting the email.
X-MessageSniffer-Identifier: c:\SmarterMail\Spool\proc\work\106017977.eml X-GBUdb-Analysis: 0, 73.171.14.148, Ugly c=0.323114 p=-0.304348 Source Normal X-MessageSniffer-Scan-Result: 0 X-MessageSniffer-Rules: 0-0-0-32767-c X-Declude-Sender: lisa.hall@mailsbestfriend.com [73.171.14.148] X-Declude-Spoolname: 106017977.eml X-Declude-Whitelist: Authenticated; lisa.hall@mailsbestfriend.com X-Declude-RefID: X-DECLUDE: ---------------------------------------------------------------------- X-Declude-Note: Scanned by Declude 4.12.11 for CSNWEB X-Declude-Scan: Outgoing Score [0] at 14:04:02 on 11 Jun 2019 by lisa.hall@mailsbestfriend.com X-Declude-Tests: Whitelisted X-Country-Chain: UNITED STATES->destination X-Declude-Code: e X-Declude-Recipcount: 1 X-Recipients: bruce@xxxxxx X-Authenticated-Sender: lisa.hall@mailsbestfriend.com X-HELO: LisaDesktop X-Identity: 73.171.14.148 | c-73-171-14-148.hsd1.va.comcast.net | xxxxxxx X-DECLUDE: ---------------------------------------------------------------------- X-Exim-Id: 005601d52080$055a62d0$100f2870$ X-CTCH-RefId: str=0001.0A0B0201.5CFFED3E.006F,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 X-CTCH-AVLevel: Unknown X-SmarterMail-Spam: SPF [Pass]: 0, Cyren [Unknown]: 0, Message Sniffer [code:0]: 0, DK [None]: 0, DKIM [None]: 0 X-MessageSniffer-ResultCode: 0 X-SmarterMail-TotalSpamWeight: 0