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Exchange 2013 Anti-Spam Technologies -The Sender Filter Agent

Last time, we introduced the agents that make up Exchange 2013’s anti-spam technologies. In this post, we’re going to take a closer look at the Sender Filter agent. Just in case you didn’t see our introductory article, here’s what we mentioned. The Sender Filter agent looks at the SMTP protocol exchange for the MAIL FROM: command. It compares this to a list of blocked senders and blocked domains, and if it finds a match, it refuses to accept email from the sender. Let’s take a closer look at the specifics of what happens when servers exchange email.

Exchange 2013 Anti-Spam Technologies -The Sender Filter Agent
   

Could Your Kitchen Be Harboring a Spambot?

You might want to think twice before turning on the coffee maker for your morning cup of joe, because it might starting spamming people! Sounds insane? Not according to Russian authorities, who’ve reported finding “spy microchips” in kitchen appliances made …

Could Your Kitchen Be Harboring a Spambot?
   

It’s a good news/bad news situation.

How many times have you heard that one? Well, if you’ve been following the slimy trail left by spammers over the past few years, the answer is probably a lot. When last we visited Kasperky Labs’ seasonal spam report, spam was on the rise, clocking in at more than 70% of all emails being sent.  That was the gist of the Q2 2013 spam report, and the organization’s latest report, the Q3 2013 version, spam emails appear to be down a bit, but as you might expect, the good news isn’t all that good, and the bad news, well, it’s bad.

The short version is that spam email showed a 2.4% decline over the previous quarter, coming it at 68.3%. While not a significant figure in terms of the overall impact of spam on our inboxes, it’s a bit promising. We should note that it’s not the first time that we’ve seen a decline, and there does seem to be a trend as the amount of spam is heading in the right direction – down. But the number of emails with malicious attachments – the real danger in spam email – is going in the wrong direction. Kaspersky detected the nasty stuff in 3.9% of all emails, up 1.6 percentage points over Q2 2013, and up 0.5% over the entirety of 2012.

Spam Email Down, Phishing Way, Way Up: Kaspersky
   

Spammers Putting New Twist on an Old Scam

  A new spam campaign discovered by security experts is adding a Syrian twist to the old Nigerian scam.  Instead of the classic pleas from people claiming to be citizens of an obscure African nation or lawyers claiming to represent …

Spammers Putting New Twist on an Old Scam
   

Getting to Know Exchange 2013 Anti-Spam Technologies

Welcome to a new series here on AllSpammedUp.com on the anti-spam technologies in Exchange 2013. While the focus of this blog has not been quite as technical as our sister blog TheEmailAdmin.com, it’s time for a change here on ASU, and we think you’re ready for a more technical focus. In this post we’re going to go over the technologies available within Exchange 2013 at a high level, and then in following posts we will get into more detail on each of the technologies we introduce here.

Getting to Know Exchange 2013 Anti-Spam Technologies
   

The marketing division of the Sirius Cybernetics Corporation defines a robot as “Your Plastic Pal Who’s Fun To Be With.”

The Hitchhiker’s Guide to the Galaxy defines the marketing division of the Sirius Cybernetics Corporation as “a bunch of mindless jerks who’ll be the first against the wall when the revolution comes…”

Curiously enough, an edition of the Encyclopaedia Galactica that had the good fortune to fall through a time warp from a thousand years in the future defined the marketing division of the Sirius Cybernetics Corporation as “a bunch of mindless jerks who were the first against the wall when the revolution came.”

This abridged passage from The Hitchhiker’s Guide to the Galaxy is a fine example of the comedy that can be found in the marketing world, and if you’ve read Douglas Adams you already know that he had a lot to say on the subject of marketing people. But on special occasions in the real world, comedy writes itself, and one needs look no further than a post on Spamhaus.org last week to realize that Douglas Adams, while he was a tremendously funny man, didn’t have to work too hard when writing on the subject of marketers.

Stupid is as Stupid Does: DMA Spams Spamhaus
   

Ah, marketing spammers. You crazy kids.

Spewing out your junk as if you’re doing the world a huge solid, when in fact that nasty discharge coming from your email client is today’s herpes. You’re the modern day pushers, telling anyone who will listen how they simply cannot live without your particular brand of [insert product here].

You’re unabashed in your attempts, breaching with impunity the time-tested and proven covenant that it’s simply not polite to knock on a stranger’s door. You use fuzzy logic to justify your wayward ways, finding new and slippery ways to get us to accept your emails. Using seemingly innocent methods like asking for an email address at the cash register, the term ‘opt-out’ is your mantra, and it’s the sword by which you live and die.

Often, you don’t care whether permission to bug people has been given explicitly; it’s enough that it’s been implied, under many laws, anyway. Anyway, that’s what email lists from banks, insurance companies, and other institutions are for. The permission has been given to them, albeit buried under a mountain of legalspeak, so all you have to do is pay a fee to latch on like the bottom feeders that you are. And if the email gets intercepted by a good spam filter, then find ways to circumvent those spam filters. How dare they try to block your unwanted filth?

British Watchdog Group Says Marketing Spam is Getting Out of Control
   

Watch Out! CryptoLocker Virus Spreading Through Email

Update your SPAM and antivirus filters, check your clients’ A/V software, warn your users, and refill your hand sanitizer. CryptoLocker is making the rounds this week, and it’s both very nasty and rather unique. If I was a bad guy, I’d have to kick myself for not being the first to come up with this idea. Here’s what you need to know.

Watch Out! CryptoLocker Virus Spreading Through Email
   

Nordstrom Sued Over Spam

High-end retailer Nordstrom is finding itself in hot water after being sued over its practice of requiring customers to provide their email addresses at the completion of a purchase. Plaintiff Robert Capp sued after being asked to hand over his email …

Nordstrom Sued Over Spam
   

Why Spam Is Our Fault

The numbers change depending upon who you talk to, but according to SpamLaws.com unsolicited junk email accounts for between 45 to 73 percent of all email messages sent on a given day. By some counts, that is over 14.5 billion messages every day.

The truth is, spam will never go away. Plenty of headlines tout the decline, or even death, of spam but these are all fallacies.  In fact, spam has spilled over into other mediums as well. Its not just email that has been plagued by illicit, unsolicited junk. Comment sections on blogs are littered with spam, even blogs themselves are used to deliver spam. Social media, text messages and every other form of communication is used by spammers to get their message in front of your eyes. The sad truth is, spam exists and it is all our fault.

Why Spam Is Our Fault
   

Last Comments

  • Jim on To Spam or Not to Spam? British Man Gets His Bard on; Gets Revenge, Too June 30, 2014

    Although I can understand Joseph's decision to do that, I don't completely side with him, simply because I have been spammed before and I know it doesn't feel really good. Well, that may be his goal, but you can never correct a wrong with another wrong. I just hope he found fulfillment with what he had done.

  • Connie Law on Does Legitimacy Make LinkedIn and Zoosk Spam All Right? June 30, 2014

    @Peter: It seems like I missed that story about Papa John's. Is it found in here? What actually happened? I'm very interested about spamming made by legitimate companies because I feel that's what usually happens these days. Especially in Facebook. These companies are flooding my newsfeed.

  • Angela on Report: U.S. an Oasis for Spam June 30, 2014

    Hi AG! I hope you can share more of the study with us. Yeah, it sounds very interesting. I think people's opinions here can actually be backed by some good research. Maybe you can contact the admin of this website. Most probably they will allow you to guest post so you can share your findings.

  • Pete on Do Changes to China’s Anti-Spam Laws Matter? June 30, 2014

    @Ran: We can't expect anything from China, my dear. I even feel that they're using this spam excuse to gain more control not only on its people but also from business operators. They love to work that way. Everything that you see is usually just a facade.