Large enterprises can configure EOP in endless ways. You’d be appalled.) Phishing messages with malicious URLs are quarantined, but the bad guys change the URLs so quickly that obviously some get through.Īs you’d expect, spam filtering is complex. (An extraordinary number of malicious messages never reach you. Microsoft checks IP addresses of senders and drops messages that are unambiguously from bad guys. Microsoft’s spam filtering service, Exchange Online Protection (EOP), has been continuously in place with constant tweaking, but no major overhauls, for fifteen years.
It’s worth mentioning that I’ve never blacklisted any of these companies (marked them as junk), and no rules are sending them to junk. There’s a notification of a security breach at Burning Shed, a UK music vendor that I’ve done business with, notifying me that I have to go change my password.Solarwinds is one of the largest companies in the world for IT monitoring and support. There’s an alert about a client’s server from the company that handles my remote management software.I’ve whitelisted my incoming articles dozens of times, and they still go to junk. On Wednesday, it’s one of my own articles sent by the company that I use for mass mailings – Mad Mimi, owned by GoDaddy.There’s an alert that Sonora Resort – a place we went on vacation – won’t open this season. There’s a newsletter from Relix that I subscribed to. Some of the messages are advertising from companies I’ve done business with.It’s a receipt from one of the largest companies in the world. The first one is a receipt from Apple for a monthly payment.None of them are “unsolicited and universally unwanted.” Those messages have one thing in common: Not one of them is junk mail. This is a screenshot of messages in my junk mail folder from the last week. Sure, much of what was passed through was advertising and crud, but the important thing was, we could safely ignore the junk mail folder. It would capture junk but pass through virtually all legitimate messages. Microsoft’s definition of junk email: “ Junk email is spam, which are unsolicited and universally unwanted messages (when identified correctly).”įor many years, the default Office 365 spam filter was almost completely reliable. If you’re not checking your junk mail folder occasionally, I’d suggest you scan it every so often, just in case. I don’t see any changes from Microsoft in the last year or two that would account for it.
But there are only scattered complaints online when I search for trends. Several of my clients have mentioned that more messages lately are being incorrectly flagged as spam, and the mistakes seem obvious when I look at my own Junk Email folder.
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Seriously, I don’t know how to explain it. Too many important messages are going into my Outlook Junk Email folder, and I can’t figure out why.
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