Gmail: Images loading in email despite "no load" setting in gmail settings

[Nohoi1]

Is that due to the email senders somehow embedding images in the HTML?

Can this be rectified somehow? 

Thoughts? Anyone else seen a few messages like that slip by?

Block images embedded in HTML body of the messages when setting it set to block external sender images .

[KAM]

The setting blocks external images.  It does not block CID or Content-ID information.  Do you see things like img src=cid:..... in the email? -KAM

[icrew]

Put another way, that setting only blocks images that are hosted on outside servers (and used for things like tracking whether people opened the message). It will still display images that are sent as attachments in the message itself, and referenced via CID as @KAM mentioned...

[Nohoi1]

Thank you both. ( @KAM ) Wonderful insight. Indeed the header contains these with an apparent call to an image - that looks like an email address. My sense is that they are using this for tracking somehow. It bypasses the "no image load setting". 

I found an interesting article out on  sendgrid that explains the different methods to put images into emails.  

The tech here is beyond me and I'm not having too much success deciphering the CID parameter in this example. (domain changed to protect the guilty) 
 src= cid:image-200111-23974@us02.email-marketeer.tld
Is that CID reference somehow tweaking an email tracker? 

[KAM · Accepted solution]

Look at the email and somewhere you will see an image inline in the email that's encoded that matches the content id from the img src=cid:<content-id>.

There is no tracking risk to these type of images, they are part and parcel with the email.  -KAM

[Nohoi1]

Thanks a bunch @KAM  - that's helpful!  Much appreciate your help.