Hi, What do you know about "Gmail confidential mode" emails? I'm starting to see a few of these come in to users now, and not sure how to treat them. They are sent through gmail, but require a one-time passcode sent to the recipient, so any potential threat is not transferred through the same email (or any email at all).
The messages I've received were all tagged as spam due to bayes, but they otherwise have no other spam indicators. This doesn't appear to be anything new, but it's the first time I'm seeing it. Just thought I'd share and see if anyone had any input on how they're managing them.
