Instructables Newsletter wrongly rated as SPAM caused by SORBS listing
The newsletter sender is listed on the SORBS anti SPAM list and therefore gets rated as spam.
An excerpt from the mail header:
The Newsletter sender is listed on the SORBS List:
X-HE-Spam-Level: +++++
X-HE-Spam-Score: 5.6
X-HE-Spam-Report: Content analysis details: (5.6 points)
pts rule name description
---- ---------------------- --------------------------------------------------
-0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no
trust
[167.89.7.199 listed in list.dnswl.org]
2.5 RCVD_IN_SORBS_HTTP RBL: SORBS: sender is open HTTP proxy server
[167.89.7.199 listed in dnsbl.sorbs.net]
0.8 HTML_IMAGE_RATIO_02 BODY: HTML has a low ratio of text to image area
0.1 HTML_MESSAGE BODY: HTML included in message
1.5 GENERIC_IXHASH BODY: iXhash found in ix.dnsbl.manitu.net
0.7 MIME_HTML_ONLY BODY: Message only has text/html MIME parts
-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature
0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid
X-SPAM-FLAG: Yes
X-HE-SPF: PASSED
Comments
5 years ago
Thanks for passing this along! We monitor delivery of the newsletter very closely in general (and overall, it's quite good), but we weren't aware of this issue. We'll be looking into it right away.