--- title: Invalid email in red, what you need to do? description: If a participant's e-mail appears in red in the participant view, with this icon , in your event back-office, this indicates that the e-mail is blocked by the recipient's server. This visual indicator --- [Skip to content](https://help.inwink.com/invalid-email-in-red-what-to-do#main-content) - [English](https://help.inwink.com/invalid-email-in-red-what-to-do) - [Français](https://help.inwink.com/fr/email-invalide-que-faire) English Show submenu for translations [More support](https://help.inwink.com/kb-tickets/new?hsLang=en) [![logo inwink](https://help.inwink.com/hs-fs/hubfs/LOGO_RGB@600x-2.png?width=100&height=75&name=LOGO_RGB@600x-2.png)](https://help.inwink.com/?hsLang=en) - [Knowledge base](https://support.inwink.com/) - [My tickets](https://support.inwink.com/tickets) Open main navigation Close main navigation - [Knowledge base](https://support.inwink.com/) - [My tickets](https://support.inwink.com/tickets) - - [English](https://help.inwink.com/invalid-email-in-red-what-to-do) - [Français](https://help.inwink.com/fr/email-invalide-que-faire) English Show submenu for translations - [More support](https://help.inwink.com/kb-tickets/new) Hello ! How can we help you? - There are no suggestions because the search field is empty. 1. [Help center](https://help.inwink.com/?hsLang=en) 2. [Emailings](https://help.inwink.com/emailings?hsLang=en) 3. [Send emails](https://help.inwink.com/emailings?hsLang=en#send-emails) # Invalid email in red, what you need to do? If a participant's e-mail appears in red in the participant view, with this icon ![](https://help.inwink.com/hs-fs/hubfs/undefined-Aug-16-2022-03-46-17-88-PM.png?width=17&name=undefined-Aug-16-2022-03-46-17-88-PM.png), in your event back-office, this indicates that the e-mail is blocked by the recipient's server. ![mail invalide 2](https://help.inwink.com/hs-fs/hubfs/mail%20invalide%202.png?width=688&height=129&name=mail%20invalide%202.png) This visual indicators tells you that we have been unable to reach the participant's mailbox. This may be due to : - An error when entering the email address - The mailbox no longer exists - Access to the mailbox has been denied for security reasons - Etc. ⚠️ As long as the email is in red and considered invalid, **the participant not receipt any more emails.** You can see the **history of email reception errors** when editing the participant's file \> **Timeline tab.**  **![](https://help.inwink.com/hubfs/image-png-Jan-25-2023-10-38-09-9664-AM.png)** ### What can I do to unblock the situation? To put back the email in valid, a simple manipulation of your part, can be done. To do this:  - Go to the back-office of your event - Participant tab \> edit the participant's file in question - Delete the last letter of the email, save - Go back to the form of this participant by editing it - Add the letter you deleted (in the previous step) - Save 📧 The email will then turn grey and will be valid again.  You can then [manually resend this email](https://help.inwink.com/send-email-manually?hsLang=en) to the person in question. ➡️ If the second time the email is sent, it will no longer appear in red.  ➡️ If, on the other hand, there seems to be no error in entering the email, the problem is with the participant's mailbox, and inwink is not authorized to contact them. 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