Title: invalid email
Last modified: November 14, 2017

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# invalid email

 *  Resolved [thegypsyinus](https://wordpress.org/support/users/thegypsyinus/)
 * (@thegypsyinus)
 * [8 years, 5 months ago](https://wordpress.org/support/topic/invalid-email-2/)
 * i am using the Hustle plug-in and when I use the email opt in my viewers cannot
   input their email as they receive a notification that states “invalid email”.
   please advise on how i can fix this as the other forums didn’t pose a solution.
   thank you!!!
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Finvalid-email-2%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Support [Imran – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support9/)
 * (@wpmudev-support9)
 * [8 years, 5 months ago](https://wordpress.org/support/topic/invalid-email-2/#post-9682489)
 * Hello [@thegypsyinus](https://wordpress.org/support/users/thegypsyinus/)
 * Hope you’re doing well!
 * Would you please let me know which Mail Service is selected in Opt-in? If it 
   is MailChimp, please make sure that a MailChimp’s list is selected. Please see
   this screenshot:
 * If a list is selected and the issue still showing up, please enable debug mode.
   Add the following to wp-config.php file:
 *     ```
       define( 'WP_DEBUG', true );
       define( 'WP_DEBUG_LOG', true );
       define( 'WP_DEBUG_DISPLAY', false );
       ```
   
 * Make sure that you insert these lines above `/* That's all, stop editing! Happy
   blogging. */`in the wp-config.php file. Try to add an email to the popup again,
   this way all errors will be saved in the debug.log file inside the /wp-content/
   directory. Please post the content of the debug.log file here.
 * Let us know how it went!
 * Kind regards
    Nastia
 *  [kristinrutten](https://wordpress.org/support/users/kristinrutten/)
 * (@kristinrutten)
 * [8 years, 5 months ago](https://wordpress.org/support/topic/invalid-email-2/#post-9699889)
 * I am having the same problem on a client site. Here’s the debug.log info:
 * [19-Nov-2017 22:03:59 UTC] PHP Notice: Undefined index: inc_optin_email in /home/
   zedswetpaint/www/www/wp-content/plugins/wordpress-popup/inc/opt-in-front-ajax.
   php on line 23
 *  Plugin Support [Laura – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support8/)
 * (@wpmudev-support8)
 * [8 years, 5 months ago](https://wordpress.org/support/topic/invalid-email-2/#post-9701204)
 * Hey [@kristinrutten](https://wordpress.org/support/users/kristinrutten/),
 * Hope you’re well.
 * First, let me explain one thing, based on WordPress forum documentation;
 * > Unless users have the exact same version of WordPress on the same physical 
   > server hosted by the same hosts with the same plugins, theme, and configurations,
   > then the odds are the solution for one user will not be the same for another.
   > For this reason, we recommend people start their own topics.
 * [https://make.wordpress.org/support/handbook/forum-welcome/#post-in-the-best-place](https://make.wordpress.org/support/handbook/forum-welcome/#post-in-the-best-place)
 * Did you try Nastia’s recommendation about selecting mail list? Some providers
   need authorization too. Please check the instructions when you select the email
   service provider. If this does not help at all please let me know.
 * Cheers,
    Oguz
 *  [kristinrutten](https://wordpress.org/support/users/kristinrutten/)
 * (@kristinrutten)
 * [8 years, 5 months ago](https://wordpress.org/support/topic/invalid-email-2/#post-9701789)
 * Sorry, I’ll start my own thread.
 *  [jdailey](https://wordpress.org/support/users/jdailey/)
 * (@jdailey)
 * [8 years, 5 months ago](https://wordpress.org/support/topic/invalid-email-2/#post-9741735)
 * [@thegypsyinus](https://wordpress.org/support/users/thegypsyinus/) Thank you 
   for using Hustle. I am going to close this topic for now. If you still need assistance,
   let us know and we will reopen the thread.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘invalid email’ is closed to new replies.

 * ![](https://ps.w.org/wordpress-popup/assets/icon-256x256.gif?rev=3446944)
 * [Hustle - Email Marketing, Lead Generation, Optins, Popups](https://wordpress.org/plugins/wordpress-popup/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-popup/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wordpress-popup/)
 * [Active Topics](https://wordpress.org/support/plugin/wordpress-popup/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-popup/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wordpress-popup/reviews/)

## Tags

 * [email opt in](https://wordpress.org/support/topic-tag/email-opt-in/)
 * [Hustle](https://wordpress.org/support/topic-tag/hustle/)
 * [invalid email](https://wordpress.org/support/topic-tag/invalid-email/)

 * 5 replies
 * 5 participants
 * Last reply from: [jdailey](https://wordpress.org/support/users/jdailey/)
 * Last activity: [8 years, 5 months ago](https://wordpress.org/support/topic/invalid-email-2/#post-9741735)
 * Status: resolved