Inbox C.
No complains, try out!
Using this service as mail filter since website has sign in and keeps being bombarded and works like a charm :) filters what it should, integration with Ruby on Rails backend was seemless, I am satisfied :)

CleanTalk is a SaaS spam protection service for websites. CleanTalk uses protection methods which are invisible to site visitors. Connecting to the service eliminates needs for CAPTCHA, questions and answers, and other methods of protection that complicate the exchange of information on the site.CleanTalk cloud service provides automatic and invisible protection against spam for websites. CleanTalk analyzes user behavior and evaluates the parameters of a completed form.The CleanTalk company developed unique algorithms to assess the behavior of visitors, and with 99.998% accuracy, we keep spam messages at bay. All of this happens automatically and requires no action from the website administrator.CleanTalk team has been developing a cloud spam protection system for 6 years and has created a truly reliable anti-spam service designed for you to guarantee your safety.
CleanTalk (cleantalk.org) has 724 customer reviews on Five Star Index, with an average rating of 4.9 out of 5.
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Claim this listing724 approved reviews, newest moderated first
Inbox C.
Using this service as mail filter since website has sign in and keeps being bombarded and works like a charm :) filters what it should, integration with Ruby on Rails backend was seemless, I am satisfied :)
MrAlper B.
I would recommend a really effective plugin to anyone. Good job.
Sandra
I've been using CleanTalk for my blog since 2018, and it's been awesome! Before using it, I was getting spammed every single day. Now, I don't have to deal with it because its automatically being taken care of. I love CleanTalk and plan to use it for a very, very long time!
Maximiliano
great service! and great price for 5 website! I used 7 days trial .. and works great!
Steve H.
Every time I’ve had a problem with my client’s getting spam emails from contact forms, I’ve simply added them to Cleantalk. It got to the point where it simply made more sense to protect all of my sites so I went and got a subscription. Zero issues, massively reduced spam, happy clients!
Lewis
Anyone looking for a quality anti-spam plugin consider CleanTalk, great price and service!
Plato
CleanTalk fait parfaitement le boulot. Les statistiques me surprennent agréablement. Je ne regrette pas de l'avoir acheté. Je recommande vivement.
Response from CleanTalkFeb 24, 2020
Thank you! It's our pleasure to stop spam for you
Robin L.
Runs perfect and finally we got rid of wiki spam.
Response from CleanTalkFeb 24, 2020
Thank you! It's better without spam