Title: Invalid emails
Last modified: December 10, 2025

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# Invalid emails

 *  Resolved [jewelerje](https://wordpress.org/support/users/jewelerje/)
 * (@jewelerje)
 * [10 months, 1 week ago](https://wordpress.org/support/topic/invalid-emails/)
 * Hey guys! We run an online jewelry store and noticed that every now and then 
   a few invalid emails end up in our list. What’s the best way to clean those out
   so we’re not paying for contacts that aren’t even reachable, and so the list 
   stays healthy overall?
 * And while we’re at it… any tips on how to stop invalid emails from sneaking into
   our audience in the first place?

Viewing 1 replies (of 1 total)

 *  Plugin Support [supportomnisend](https://wordpress.org/support/users/supportomnisend/)
 * (@supportomnisend)
 * [10 months ago](https://wordpress.org/support/topic/invalid-emails/#post-18752038)
 * Hi there,
 * Great question, keeping your list clean is one of the best things you can do 
   for your deliverability, performance, and overall costs, so it’s smart to tackle
   this early.
 * **1. Cleaning out invalid emails**
 * Omnisend offers **automated list cleaning**, so you can remove invalid contacts
   in just a few clicks. This helps you:
    - improve deliverability
    - reduce bounce rates
    - protect your sender reputation
    - boost open and click rates
    - get more accurate reporting
    - reduce costs by not paying for unreachable contacts
    - increase ROI across your marketing efforts
 * Invalid email addresses has a cumulative effect, so it’s best not to wait until
   issues become noticeable.
 * To run the cleaning, go to:
 * **Reports → Deliverability → scroll to Email list hygiene → Go to email list 
   cleaning**
 * ![](https://i0.wp.com/downloads.intercomcdn.com/i/o/8ded161ba03a36c33c591b9605a19c255fb04c15/
   1654655132/322c4eff17765f9083b4fac33d52/chrome-capture-2025-08-05%2B%284%29.gif?
   ssl=1)
 * **2. Preventing invalid emails from entering your list**
 * To stop bad or mistyped addresses from getting into your audience in the first
   place, we strongly recommend enabling **double opt-in**. It confirms that the
   subscriber owns the email address and ensures your list only grows with valid,
   engaged contacts.
 * You can enable this under:
 * **Behaviour settings → Audience management → Enable double opt-in**
 * Omnisend also supports **Google reCAPTCHA** on signup forms, a widely used tool
   that helps block spam bots without adding friction for legitimate customers.
 * Both double opt-in and reCAPTCHA work together to keep your list clean from the
   start.
 * If you need any guidance while setting this up, feel free to reach out, we’re
   here to help you keep your audience healthy as you grow.
    -  This reply was modified 10 months ago by [supportomnisend](https://wordpress.org/support/users/supportomnisend/).

Viewing 1 replies (of 1 total)

 The topic ‘Invalid emails’ is closed to new replies.

 * ![](https://ps.w.org/omnisend-connect/assets/icon-256x256.gif?rev=3695225)
 * [Email Marketing for WooCommerce by Omnisend](https://wordpress.org/plugins/omnisend-connect/)
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 * 1 reply
 * 2 participants
 * Last reply from: [supportomnisend](https://wordpress.org/support/users/supportomnisend/)
 * Last activity: [10 months ago](https://wordpress.org/support/topic/invalid-emails/#post-18752038)
 * Status: resolved