Kill Spam with Mollom

"Kill spam".  Sounds beautiful doesn't it?

I'd gotten irritated with the amount of spam comments we were getting on BestOfDrupal.com so I decided to try a new module out.  I was looking around on Drupal.org and noticed Mollom, a new module that's being used by Sony BMG, Adobe, Warner Bros and FastCompany, among others.

The great thing about Mollom is that it doesn't stop your users from posting comments with ugly CAPTCHAs unless it's concerned that they might not be human.  In other words, people can carry on using your site as usual and, only once in a while, they'll get shown a screen to confirm their human-ness.

Let's face it, people-submitted content runs the internet.  We're slowing our own growth down by putting hundreds of barriers between our users' comments and us.  So, by using intelligent text-analysis and other goodies, Mollom makes it possible for us to focus on great content instead of blocking people.

Mollom is actively developed and maintained by Dries Buytaert, the founder and project lead of Drupal core.


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Daryl (not verified) | Sat, 11/01/2008 - 15:03

Thanks for the useful information. As Drupal Trends continue to increase, I'm constantly looking for new ways to combat spam.

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Daryl James (not verified) | Thu, 02/05/2009 - 03:06

@ Let's face it, people-submitted content runs the internet. We're slowing our own growth down by putting hundreds of barriers between our users' comments and us.

Thank you. Thank you. Thank you.

More bloggers need to understand this. While I don't use Drupal (yet - I'm still using WordPress debating on which CMS to upgrade to), Mollom sounds like a sensible solution for maintaining the proper balance.

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Lapith (not verified) | Tue, 04/28/2009 - 21:00

Interesting post about Mollom. I like the module for what it is used for, but have found that it is a bit limited in its ability to apply itself to multiple types of forms on a site. I would really like to see the ability to easily apply the Mollom check to custom forms created with the webform module, as well as being able to easily apply it to custom forms using the FAPI.

Because of the webform limitation specifically, I have decided to go with the CAPTCHA module and use image captcha.

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Norio De Sousa | Tue, 04/28/2009 - 21:49

@Lapith, maybe tweet Dries about this and see if he'll get someone working on it? As far as I know, Mollom has a pretty simple API that can be used for custom forms. It might not be point-and-click yet but the foundations are there.

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seo blog (not verified) | Thu, 06/04/2009 - 12:01

what i was looking for.
i have to clean the spams everday, and i don't really want to put captcha.

thx

Edit: "We are sorry, but the spam filter on this site decided that your submission could be spam. Please fill in the CAPTCHA below to get your submission accepted."

he took my comment for a spam. so it's not perfect yet i guess :o)
by the way, what module do you use for your captcha?

thx again

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Norio De Sousa | Thu, 06/04/2009 - 12:08

To be honest, I'm not sure. It's been a while since I've looked at the module list on this site. I'm trying to find contributors to write articles, so I'm waiting to get that right before I improve the site further

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Drupal Development (not verified) | Sat, 08/08/2009 - 06:54

These are great tips, whats the best way to clean the spams.I will try Mollom module for my blog.

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About Us

Chris Luckhardt is a Canadian web media specialist, working in industry since the late 1990s. Over the course of his career in Canada, Chris has worked with countless technologies, equally splitting his time between the worlds of design and development. Read More

Norio is a South African entrepreneur, programmer and musician who enjoys making web sites that provide a great service for people. Read More

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