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Gmail image caching update

Late last year Gmail started caching images on their servers, breaking open tracking in some circumstances. This image caching was good for senders, in that images were back on by default. But it was also bad for senders because it broke dynamic content and didn’t allow for tracking of multiple opens by the same recipient.
According to a new blog post by Moveable Ink this issue has now been resolved and Google is respecting cache headers so senders who are using dynamic content or want to track multiple opens can do so.

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Is gmail next?

I’m hearing hints that there are some malware or phishing links being sent out to gmail address books, “from” those gmail addresses. If that is what’s happening then it’s much the same thing as has been happening at Yahoo for a while, and AOL more recently, and that triggered their deployment of DMARC p=reject records.
It’s going to be interesting to see what happens over the next few days.
I’ve not seen any analysis of how the compromises happened at Yahoo and AOL – do they share a server-side (XSS?) security flaw, or is this a client-side compromise that affects many end users, and is just being targeted at freemail providers one at a time?
Does anyone have any technical details that go any deeper than #AOLHacked and #gmailhacked?

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