Forum Discussion
Why is this image spam getting through and why is Outlook not blocking the image?
There was a vuln in OWA for Exchange/EXO that permitted a remote image that is coded as the background image for a table cell to display automatically, even when remote image loading was disabled. That was patched quite some time ago though. Not sure if the same issue affected Outlook fat clients but it's possible. Viewing the source of the message should show you how the remote image has been inserted.
I'd say you should:
- Report the spam as Vasil suggests
- Make sure your Outlook client is fully up to date
- Open a support case with Microsoft to investigate why a remote image is still loading (depending on your findings)
Answering those questions requires a more detailed investigation into the message content, headers and so on, why dont you open a case with support and have them look at it? At the very least, you can submit it as spam so they can "learn" from it and hopefully adjust the filters. Here's how: https://technet.microsoft.com/en-us/library/jj200769(v=exchg.150).aspx