Data Cleansing

According to Ken, Outward Media has productized a database of 300,000,000 email addresses that should never be mailed.

OMI’s Clean-Send Suppression Database can help to protect your email sender reputation and save you valuable marketing dollars.
In a nutshell, OMI Clean-Send is a database consisting of approximately 300 million negative email records (spam traps, foreign IP’s, hard bounces, and other negative email data). Due to the erosive nature of consumer email, we have joined with a consortium of email partners who share the OMI philosophy that data quality is far more important than data quantity.

It’s an interesting idea. I certainly have a lot of clients who have come to me looking for ways to clean old lists and data of unknown provenance. This might be worth looking at.


  1. John L says

    These people claim to have 135 million consumer addresses, which they “clean and refresh our entire database every 45-60 days.” I don’t know what that means, but it can’t be good.

  2. Martijn Grooten says

    I’m with John here.
    Also, you don’t need a list to filter foreign IPs or addresses with incorrect syntax from your database.

  3. Al Iverson says

    Looks like Spamhaus doesn’t like them:

  4. Justin Grenier says

    Isn’t this contrary to the good habits we are always preaching? If we send *email people want* to an engaged, opted-in group of people who want our mail, why would there ever be a need to clean our lists?
    What am I missing? Am I just being naïve?

  5. Data Cleansing part 2 – Word to the Wise says

    […] all that being said, Justin had a great question in the comments of yesterday’s post about data cleansing. Isn’t this contrary to the good […]


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