Spam filter false positive

[dabesa]

Dear support,

Since a couple of days, some emails are marked as spam by the spam filter, for example: https://paste.pics/f76946a0e90795a975c536c861555d57

But in the header there's no indication of Spam:

`X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 clxscore=1015 impostorscore=0 adultscore=0 bulkscore=0 phishscore=0 mlxlogscore=999 mlxscore=0 lowpriorityscore=0 malwarescore=0 priorityscore=1501 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2404010000 definitions=main-2404180109 X-Spam-Status: No, score=0.8 X-Spam-Score: 8 X-Spam-Bar: / X-Ham-Report: Spam detection software, running on the system "sofia.svrsh.com", has NOT identified this incoming email as 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 root\@localhost for details. Content preview: FedEx U ontvangt uw factuur als bijlage bij dit bericht We hebben uw nieuwe factuur 130351052 bijgevoegd. Als u vragen of opmerkingen over deze factuur heeft, kunt u contact met ons opnemen via . U kunt oo [...]

Content analysis details: (0.8 points, 7.0 required) pts rule name description

---

0.0 URIBL_DBL_BLOCKED_OPENDNS ADMINISTRATOR NOTICE: The query to dbl.spamhaus.org was blocked due to usage of an open resolver. See https://www.spamhaus.org/returnc/pub/ [URIs: mailchimp.com] 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: mailchimp.com] 0.0 T_OBFU_PDF_ATTACH BODY: PDF attachment with generic MIME type 0.1 MIME_HTML_ONLY BODY: Message only has text/html MIME parts 0.0 HTML_MESSAGE BODY: HTML included in message 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 0.1 DKIM_INVALID DKIM or DK signature exists, but is not valid 0.0 KAM_DMARC_STATUS Test Rule for DKIM or SPF Failure with Strict Alignment 0.5 KAM_NUMSUBJECT Subject ends in numbers excluding current years X-Spam-Flag: NO `

It happened with multiple emails now, how can I troubleshoot this?

Thanks

[freescout-helpdesk]

Simply reset the Learning Memory.

[dabesa]

Thank you, I was not aware of this setting.

Just a minor typo: "Filter Using Spam-Filtering Altorithm & Learning" it should be "Algorithm"

[dabesa]

the typo was fixed in spam module version 1.0.25, thanks