How to hook in after user’s registration email has been sent?

I would use the registration_redirect filter. This allows you to set where the user is sent to, but leaves WordPress to perform the redirect (after everything has successfully processed).

function wpse_139267_registration_redirect( $url ) {
    return site_url( 'thank-you' );
}

add_filter( 'registration_redirect', 'wpse_139267_registration_redirect' );

Related Posts:

  1. Post-Registration, post-meta hook?
  2. How can I do customizations on login, registration and password recovery forms?
  3. update post meta using user_register hook not working
  4. How to hook into user registration process Before user registers
  5. How to modify an add_action() inside a loop of core function
  6. How to increase password requirements for registration [closed]
  7. Can user_register output the password?
  8. register_activation_hook not updating
  9. Custom Front End Registration – How Does the Key work in the Password Set Request?
  10. How to change the default mail when admin approuved an user?
  11. hooks for automatic approve user registration according to data in custom fields
  12. What hooks do I need to hook into to capture ever wp_user creation/change?
  13. ‘user_register’ hook – need to distinguish if created from wp admin panel
  14. add_action doesn’t work for my function
  15. Updating user meta data from external link, user not logged in
  16. Which hook should I use for this scenario regarding the registration process and account/profile update?
  17. Problem in register activation hook and Copying folder
  18. Does wp_login hook fire on user registration?
  19. How to hook update_post_meta and delete_post_meta?
  20. Are there any hooks that alter the 404 logic?
  21. Use wp init hook to call other hooks?
  22. Add_action to wp_head via functions.php
  23. Hook that fires when admin setting is saved
  24. What is the difference between update_post_meta and update_postmeta hooks?
  25. How to remove action hook done in a plugin from functions.php in my theme?
  26. Hooks for trashing, deleting, saving, restoring custom post type
  27. Implementing advanced add_* function wrappers
  28. My add_action (wp_footer, ‘method’) is not calling?
  29. Hook into wp_head(); in a plugin
  30. Use $query->set multiple times with pre_get_posts?
  31. How can I hook into the post editor title field in order to change the HTML?
  32. WordPress v5.0.3 Gutenberg & JS error “Uncaught SyntaxError: missing ) after argument list”
  33. Can’t get ID of post that relates to the comment
  34. Searching hook to set cookies before and avoid “headers already sent”
  35. Hook before inserting user into database [duplicate]
  36. wp_redirect() not working on form submission with init hook
  37. WooCommerce – Overwrite action hook [closed]
  38. Admin Hook at the Login Page
  39. Which Hook? Hide attachments from specific post types in media library
  40. Custom action on login and “remember me”
  41. How to prevent double execution of do_action statements
  42. When is the {$new_status}_{$post->post_type} transition hook fired?
  43. TinyMCE as comment editor – encoding issues
  44. Hook to change Logout url
  45. Method to find a hook
  46. Understanding WP
  47. Get post or page id early
  48. Looking for a hook for post.php
  49. Executing Arbitrary Code at a Specific URL without Creating a Post or Page?
  50. Update a costume wp_usermeta key back to 0 every 24hours (time can be specified as needed)
  51. customize_controls_enqueue_scripts doesn’t fire from within my plugin
  52. Save User Meta Email Address in Lowercase
  53. When are wp redirect methods safe to hook?
  54. WooCommerce single product page quantity description [closed]
  55. How to cancel the trash action inside wp_trash_post
  56. wp_insert_post_data hook should be called before updating db but isn’t
  57. What is the difference between add_action and add_filter [duplicate]
  58. load-* hook for dashboard
  59. What conditions must be met in order to upload .zip file to a multisite WordPress installation?
  60. How to hook code in ?
  61. wp_enqueue_script before wp_head
  62. Is it possible to add the_content filter upon login?
  63. Use an array of page template slugs and $hook
  64. wp_logout hook never triggered
  65. add short description under price
  66. post.php AJAX request not being called when publishing post
  67. WordPress media library allow uploading fake file
  68. What hook do I use if I want to update a user profile field when a new user is created?
  69. How to add custom tab page in backend?
  70. Add html code in admin page
  71. Hooking dynamic/variable named hook in all cases
  72. What hook to add at start of WordPress load
  73. Knowing if a post is sticky in the ‘save_post’ action. Where do I have to hook?
  74. How to automatically activate users after registration without activation email?
  75. How to read and write session data?
  76. Count when a post of a custom post type is deleted and store it in a theme option
  77. Can we change the hook firing sequence?
  78. Intercept loading of a certain page
  79. Add content in cpt archive page
  80. Creating custom post on registration in wordpress?
  81. Display custom user profile fields in wordpress
  82. profile_update not supplying old data
  83. Output Redirect Headers on Admin Dashboard Page
  84. Help hooking into user_register
  85. add_image_size not working with after_switch_theme
  86. wordpress hooks
  87. Check when a setting has been changed
  88. add extra parameter in default hook in wordpress
  89. Exclude WooCommerce terminations from YOAST
  90. set_post_format called after wp_update_post when using bulk edit?
  91. add hook restricted only to either plugins or themes?
  92. How to hook watchdog script for existence of a WP page?
  93. addaction hook cause redirection problem
  94. Getting all post/page IDs related to a soon-to-be-deleted tag/cat
  95. Hooking get_pages()
  96. Fire a hook programmatically
  97. Transform .wp-video to the native video player of the browser
  98. How do I override the user’s input when updating a custom post type’s permalink?
  99. How to add a new link to the default register form’s footer links?
  100. How to use the password_reset hook to validate new password and display error