Lost: 200 emails gone missing. Last seen on the 25.10.2003

Sound familiar? Ever wondered what happens to those unopened emails that you see in your stats from your latest email campaign/newsletter? Yep, you guessed it-their mail servers are doing it for them.

This is what is referred to as a "False Positive". It means that although the recipient has opted in to receive your newsletter, for some reason or another, the mail server's filters have deemed it to be Spam and, in most cases deleted it, before the recipient has had the chance to give their verdict on whether it was worth opening or not.

In order to protect themselves (and presumably us) against the onslaught of unwanted emails, the servers have implemented filters, which are designed to stop Spam in its tracks. Of course there are bound to be some casualties - and in this case it is your legitimate correspondence.

There are four main things that happen when an email is filtered - depending upon which type of filter is being used.

  • It gets delivered - it has been deemed not to be Spam.
  • It gets deleted without notification to either sender or recipient.
  • It's deleted and the sender is notified via auto-bounce that the email address is no longer valid, even though it may be valid.
  • It's deleted and a blacklist is notified that the sender is a Spammer.
    So, let's have a look at the types of filters currently in use:
  • Community: This is based on the community joining together and installing the filters, then reporting any occurrences of Spam. False Positive occurrences should be low, but in reality they aren't. This is due to a couple of reasons: The first being the weed theory. What one person regards as a weed, another may regard as a flower. We all have different opinions. The other is that many people are now reporting once wanted email as Spam instead of unsubscribing.


    Blacklisting: ISP's generally use their own proprietary lists of known Spammers, created by themselves. Third party blacklisting companies also publish databases of Spam senders. False Positive's are extremely high, as these third party blacklists have no accountability. In fact anyone can report an IP Address as a Spammer and do not have to qualify their reasons.
    Address recognition: Sender's email address is in the recipient's address book or the server's/gateway's acceptable list. Email senders must earn their position within these lists.


    Trapping: The filter company plants email addresses all through the Internet to attract Spam Harvesters. Once the false addresses receive Spam, the source of the Spammer is identified; the sender is then blocked immediately across all users of the filter. False positives are extremely low.


    Challenge-Response: This white listing concept is based on all emails being Spam and the sender having to prove otherwise. Before an email is delivered, the ISP or PC that uses the filter challenges that a human sent the email. The sender has to then manually click the link and then they are added to the subscriber's permissible list. Any auto-responses such as Double Opt in responses do not work well with this type of filter.


    Rule-Based: This is the most commonly used type of filter on a server. It catches Spam by rejecting/accepting messages based on predetermined rules of what is acceptable.


    Bonded Sender: Email markers gain status as a non-Spammer through these bonder senders and are therefore permitted through the filters.


    Volume Blocking: Spammers are known to send high volume emails without thought to speed, volume or list cleanliness. The ISP sees the large amount as well as the other problems and terminates the connection.


    Probability: Using rules, a method "learns" the users definitions of Spam and decides what may be regarded as Spam. False Positives increase as rule-based Spam is reduced.


    Remember though, not only are you dealing with rule-based filters as well as the other types of filters (and most servers use a combination of filters), you also need to get past the personalised filters (i.e. the recipient themselves), so be sure to test your campaign thoroughly before sending it.

    Kath Pay is a Director of Ezemail Pty Ltd, (www.ezemail.com), an innovative company that provides comprehensive email & SMS marketing solutions ranging from DIY newsletters for small businesses to email/SMS campaign management for large international corporations. For more information on how easily email/SMS marketing can be implemented, please contact Kath on kath@ezemail.com

    In The News:


    How can email marketing contribute to a customercentric marketing strategy?
    BtoB Magazine
    Email remains the most effective channel to fuel such personalized and relevant communication with individuals across your sales funnel. I know what you're thinking—this sounds impossible to pull off, right? Oddly enough the best b2b marketers have ...


    MediaPost Communications

    Mobile Marketing on Track for Rapid Adoption in 2012 According to StrongMail ...
    San Francisco Chronicle (press release)
    Mobile marketing programs and budgets are projected to increase, but many businesses are still held back by lack of strategy and resources Redwood City, CA (PRWEB) May 23, 2012 StrongMail, a leading provider of digital marketing solutions for email, ...
    StrongMail Partners With Mobile Marketing Leader VeltiMarketWatch (press release)
    More Marketers Making Move to MobileBusinessNewsDaily
    Mobile Marketing Small But GrowingMediaPost Communications

    all 23 news articles »

    Video Commerce Consortium

    Don't Let Your Email Marketing Campaigns End Up in a Junk Folder
    Promotion World (press release)
    by Dave Thomas For every small business that has ever attempted email marketing, most will tell you that it is not brain surgery. That being said, an ineffective email marketing campaign can lessen your company's reputation among current and potential ...
    What You Can Learn From Obama's Video Email Marketing MistakesVideo Commerce Consortium
    Staffing Your Email Team — 8 Key RolesMarketing Land

    all 2 news articles »

    Entice customers using four valuable email tactics
    BtoB Magazine
    Email marketing is an important part of Goldring's overall marketing strategy. Over the three years the company has had its email program in place, Eric Goldring, the Colts Neck, NJ-based company's CEO, has learned a lot about what gets people to open ...


    GraphicMail, Janrain Engage Enable Email Newsletter Signup Via Facebook ...
    AllFacebook
    Hosted email marketing solution GraphicMail added social signup from Janrain Engage to its clients' customizable newsletter signup forms, allowing them to sign in with their Facebook account information, or credentials from more than 25 other social ...
    GraphicMail Integrates Janrain Engage for Turnkey Social-email Subscription ToolVirtual-Strategy Magazine
    GraphicMail integrates innovative social-email subscription toolBizcommunity.com

    all 6 news articles »

    Royal Mail partners with NewZapp Email Marketing to give small businesses ...
    PR Web (press release)
    Leading email marketing software provider NewZapp has joined forces with Royal Mail and a select group of other innovative business service providers to deliver a range of flexible services to help small businesses grow as part of a new product ...


    BendBroadband Selects Knotice for Email Marketing
    MarketWatch (press release)
    AKRON, Ohio, May 22, 2012 /PRNewswire via COMTEX/ -- Knotice, a leading provider of direct digital marketing software and services, announces that BendBroadband has selected Knotice to help it build stronger relationships through email marketing.

    and more »

    Ever wonder why data quality matters for marketing...
    Experian QAS
    Having access to customer lists is essential to marketers' efforts to appeal directly to the consumer. However, without email validation and other processes that ensure contact data quality, these campaigns could end up falling short of expectations ...


    StrongMail Partners with Mobile Marketing Leader Velti
    San Francisco Chronicle (press release)
    "Whether email, mobile or social media, StrongMail is empowering marketers to engage customers in meaningful cross-channel conversations that foster customer loyalty over the long-term." "Marketers are beginning to realize mobile's ability to drive ...


    Acumium Rebranding Efforts Strengthen eCommerce and Website Offerings
    San Francisco Chronicle (press release)
    Acumium's Strategic Re-branding of eCommerce, CMS and Email Marketing Platforms will Help Online Businesses Grow Madison, WI (PRWEB) May 23, 2012 Acumium, a solution provider who helps businesses grow online through their content management and ...

    and more »
    Google News

    Stop Buying Email Lists

    The saying "Quality, not Quantity" is applicable even to the... Read More

    Build Credibility With an Email Course

    When you are an expert, you sometimes forget that others... Read More

    The Flu and List building Go Hand In Hand!

    What does the flu have to do with building your... Read More

    Email List Management

    How do you get the most out of your list?We... Read More

    How to Laser Your Email Messages

    If you're in business and use email, you've likely learned... Read More

    Website Promotion Through Newsletters

    Website promotion is certainly a main focus of all business... Read More

    E-mail Whitelist Etiquette

    A big-time dilemma is brewing online. In an understandable attempt... Read More

    My Emails Are Not Being Delivered. Black Lists and White Lists Explained.

    Over 40% of all emails within your marketing campaign are... Read More

    Writing Effective Emails

    Sometimes email messages can get quite long, especially when you... Read More

    3 Essential Tools for Email Marketers

    Marketing your business with email is an art.It's very easy... Read More

    Track Customer Response With an Autoresponder Service

    Another powerful reason for making the switch from using the... Read More

    Click for Success!

    Being online for the last five or so years has... Read More

    The Benefits of Interactive Online Characters

    This Stanford University study surveyed the leading research on virtual... Read More

    Effective Email Marketing

    I've been sending out email camapigns for clients for over... Read More

    Why Does Your Business Need An Autoresponder?

    Suppose you have a website with 500 visitors a day,... Read More

    10 Terrific Ways To Enlarge Your Subscriber Base

    1. Create a unique selling proposition (USP).Developing a USP for... Read More

    Improve Newsletter Delivery with an Autoresponder Service

    Another powerful reason for making the switch from using the... Read More

    The Power of a Referral Script

    The key to the success of e-commerce is in the... Read More

    Improve Email Deliverability: 15 Tips for Email Marketing Success

    Delivering email newsletters and sales messages to opt-in subscribers and... Read More

    Email Hosting ? Learn How To Use eMail To Grow Your Business

    Email is a wonderful thing. It costs next to nothing... Read More

    Five Profitable Ways To Use Your Follow Up Autoresponder

    What? You are not using a Follow up Autoresponder? Then... Read More

    Great Response by Auto Responder

    1. Collect leads with your autoresponder. You will get an... Read More

    7 Great Email Habits for the Beginning Internet Entrepreneur

    If you are just starting out as an Internet entrepreneur... Read More

    How To Use Email Autoresponders to Boost Customer Loyalty

    Your e-commerce website relies on its customers to become returning... Read More

    The Lowdown: How To Create And Send HTML Email

    I am frequently asked how to create and send HTML... Read More