Today we launched a new and important parameter to evaluate spambots. According to our statistics, almost 30% of all spam requests are made with fake email addresses, i.e. such addresses do not exist.

Previously, we could only check the existence of emails after the fact and use these data in the future; now we have started checking emails in real-time.

This new feature of CleanTalk grants the ability to check email addresses for existence in real-time.

Non-existing email addresses also entail several other problems for website owners:
• You can never contact them by email,
• The client will never receive any notifications from you (account activation letter, password recovery, email distribution, notifications, etc.),
• If you use email marketing for your clients, then a large number of nonexistent emails in the mailing list may result in your IP address being added to various blacklists of email servers.

The anti-spam service will block all requests with not real email addresses.
You can control such requests in the anti-spam dashboard, non-existent emails will have the “Fake email” status.

Checking emails for existence is available for all anti-spam plugins and is included in the standard package.

Update 05/23/2022

Encrypted SMTP support has been added,

Spam filtering service improved

You can leave a comment below or create a private ticket here.
We will be happy to answer your questions.
How to install CleanTalk Anti-Spam on your website.
Create an account or log in.
Thank you!

Real-Time Email Address Existence Validation

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55 thoughts on “Real-Time Email Address Existence Validation

  • November 26, 2018 at 5:13 pm
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    Thanks for this update. Pleased you are keeping our clients sites protected.
    Regards
    John Kennedy

    Reply
  • November 26, 2018 at 5:14 pm
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    Thanks,

    Pleased you are keeping our clients sites protected with this update to email verification in real time.
    John

    Reply
  • November 26, 2018 at 6:21 pm
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    Can you make a plug-in for “Email Subscribers”?

    Reply
  • November 26, 2018 at 7:06 pm
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    Anti-Spam plugin can check the submission form so it will check emails of subscribers for existence

    Reply
  • November 27, 2018 at 12:10 am
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    You forgot to mention whether this new ’email verification’ protection is automatic, or if we have to enable it. Let us know, please.

    – Scott

    Reply
  • November 27, 2018 at 4:41 am
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    What happens when in real time it detects a comment form with an invalid email address?

    Does the person completing the comment form get immediate notification?

    Or, does the site administrator receive notification?

    Does it prevent the comment from being posted to the website?

    Is there a way to turn this feature on or off?

    Reply
  • November 27, 2018 at 5:44 am
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    Sounds like you are making some serious progress guys – thanks for the update. I’m sure it is going to prove very helpful.

    Reply
  • November 27, 2018 at 2:42 pm
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    email verification is automatic. This check is on the server’s side.

    Reply
  • November 27, 2018 at 2:47 pm
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    When this filter triggers it’s equal to blocking spam user. The comment will be blocked, the request will be saved in CleanTalk logs. We can lower this filter for specific service.

    Reply
  • November 27, 2018 at 2:48 pm
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    Thank you Francis O’Neill!

    We always strive to improve our service.

    Reply
  • November 27, 2018 at 6:01 pm
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    I have a Mailchimp signup form on my site. Can CleanTalk keep the fake emails from getting into my Mailchimp list? They seem to sign up and then “click” every link in the email I send out.

    Reply
  • November 30, 2018 at 7:23 am
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    Hello I am replying to your real time email verification. Thank you for contacting me.

    Reply
  • December 24, 2018 at 3:53 pm
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    @Diane Bedard

    Thank you for your question. If this form protected by CleanTalk then yes.

    You can test it with stop_email@example.com

    Contact us if you have any questions

    Reply
  • December 24, 2018 at 3:55 pm
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    @Frank

    Hello, do you have any questions?

    Contact us anytime.

    Best regards

    Reply
  • April 22, 2019 at 8:04 pm
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    Clean Talk doesn’t seem to be working for my site. When I try to go to my site from my phone it always redirects to some spam site. Not sure if I did something wrong in setting it up but it’s not working for me.

    Thanks!

    Reply
  • June 13, 2019 at 1:33 pm
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    How is it checking? Is it sending an email to the suspect email? If so, what email is it using to check?

    Reply
  • June 13, 2019 at 2:24 pm
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    Hello.
    No, we do not send a test e-mail. We use HELO/EHLO requests plus our own method.
    Thank you.

    Reply
  • July 12, 2019 at 6:46 pm
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    Hello, it is very good. i like!

    Reply
  • January 29, 2020 at 3:50 pm
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    This feature can be bad, if somebody just mistypes email address. For example name@gmail.coN
    Such leads will be lost.

    There must be an option to disable this feature.

    Reply
  • January 29, 2020 at 4:01 pm
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    Hello.

    You can always contact us through our support system to request to disable this feature:
    https://cleantalk.org/my/support/open

    Also, email in your example in non-existence and you can’t send mail to such an email.

    Thank you.

    Reply
  • May 18, 2020 at 5:42 am
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    How does this feature work?

    I use ActiveCampaign email optin form on my website and I tried to regsiter using one of the email ID which is marked as spam.. just to test. And the registration was done. Cleantalk did not prevent the registration… so I dont know how Cleantalk is protecting against spam email registrations. I have already installed Cleantalk on my website.

    Please explain. Thanks

    Reply
  • August 4, 2020 at 9:16 pm
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    Hello, Gregor.

    We need more details about the issue. Please, create a ticket in our Private Support System:
    https://cleantalk.org/my/support/open

    Also, post a few examples of IPs or emails of missed spam requests there.

    Thank you!

    Reply
  • August 26, 2020 at 4:46 pm
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    Vielen Dank,
    das hat fast alles gut funtioniert, außer das die IP meine Seite wurde auf der Blacklist eingetragen, und das ist falsch.
    Vielen Dank.

    Reply
  • October 5, 2020 at 4:29 am
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    I am not sure what is going on here but after upgrading I tested my email subscriber form by entering a dummy email adress. It went straight through to my sites database? This plugin did not catch it? Why?

    Reply
  • October 5, 2020 at 4:33 am
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    In addition to the comment above I would like to add that I just asked a friend to put in a dummy email too (not an admin) and it still went through to my database? I am starting to think this plugin is a scam. Please do convince me otherwise.

    Reply
  • October 5, 2020 at 11:09 am
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    Hello, Basil Simon.
    We need more details about the issue.
    Please, send us a screenshot of the CleanTalk settings via email:
    support@cleantalk.org
    Thank you.

    Reply
  • December 14, 2020 at 10:03 pm
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    HACE UN MOMENTO ACABO DE INSTALAR ESTE PLUGIN PERO AUN ME FALTA MUCHO POR APRENDER ME GUSTARIA APRENDER COMO CONFIGURAR EL SERVICIO DE API SI ALGUIEN ME PUEDE AYUDAR PORFAVOR

    Reply
  • December 15, 2020 at 3:28 pm
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    I just installed your plugin and when I tried to activate it with the website email it redirect me here.

    Reply
  • January 31, 2021 at 2:38 pm
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    Hello, Rabin.
    Please, re-install the CleanTalk Anti-Spam Plugin with the Complete Deactivation option:
    • WordPress Admin Page —> Settings —> Anti-Spam by CleanTalk —> Advanced settings —> set the option “Complete Deactivation” to “On” —> Save Changes;
    • WordPress Admin Page —> Plugins —> Installed plugins —> Anti-Spam by CleanTalk —> Deactivate and Delete.

    Then install it anew:
    https://cleantalk.org/help/install-wordpress

    Did it help?

    Reply
  • February 3, 2021 at 12:34 pm
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    Hello, Rabin Gurung.

    We have fixed the server-side bugs. Now all should work fine. 

    If you still see any notices in the dashboard, just save the plugin settings.

    WBR,

    Reply
  • May 25, 2021 at 8:46 pm
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    I have numerous potential customers that are experiencing issues with their email being flagged as spam when submitting an online form response. The error states “Forbidden. Contains contacts. Username seems to be spammer.”

    Reply
  • June 10, 2021 at 5:00 pm
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    Your plugin is really good. I recently added into my site and it is working good.

    Reply
  • October 1, 2021 at 10:13 pm
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    Affordable and Effective! I give it a 5 star rating for protecting my sites from comment spammers!

    Reply
  • February 6, 2022 at 7:20 am
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    I installed the trial version, and had it check for spam accounts. Out of about 1600 spam accounts, it only detected about 500. And when I told it to delete all users in the check results, it crashed the sql database. Had to wait about an hour for the site to respond again. Then I had to delete what remained 10 at a time. Not very helpful.

    And when I run the check again, it finds 4 or 5 more. I delete those, and it finds a few more. This is not a good use of my time.

    Reply
  • March 6, 2022 at 1:13 pm
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    Hello,

    I was asked to confirm my email…..I found that my email ended with .com.com! I wander how come? I cannot remember the password, how can I correct my email address to confirm my account?

    Reply
    • March 6, 2022 at 2:02 pm
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      Hello.

      We’ve replied to your request. Let’ continue our conversation in your support request.

      Thank you!

      Reply
  • December 13, 2022 at 1:52 pm
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    I used a service similar to this on our work’s email server, and we got blocked by Spam Rats When I contacted them, it was because our IP was blocked for logging on to SMTP servers, then disconnecting. I can’t see how to turn off this feature in clean talk, so I’ve had to deactivate. My personal IP has now ended up on a blacklist.

    I’m not certain how Cleantalk connects to the email server to validate, but if It’s done using the user’s IP address, then many will get blocked when testing their forms due to multiple requests.

    Reply

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