Why do I get accidental comments without (the required) email address?

Pingbacks/Trackbacks:

This is most likely a harmless case of link notifications to your blog (A) from the other blog (B), where:

  • the comment_author_email field is usually empty,
  • the comment_type field is either pingback or trackback,

  • the comment_author field has the form:

    The title of the post that contains a link to a post of blog A | The site name of blog B

It looks like the blog B has this activated:

Attempt to notify any blogs linked to from the article

and blog A has this activated:

Allow link notifications from other blogs (pingbacks and trackbacks)

in the Discussion settings.

Screenshot:

settings

Here’s a description of trackbacks/pingbacks from the Codex.

From the WordPress admin:

Trackbacks are a way to notify legacy blog systems that you’ve linked
to them. If you link other WordPress sites they’ll be notified
automatically using pingbacks, no other action necessary.

trackbacks

The automatic pingbacks use the XML-RPC protocol to communicate, you can see it for example in the comment_agent field:

The Incutio XML-RPC PHP Library — WordPress/3.9.1

Related Posts:

  1. comment_post_ID 0 (cannot remove from dashboard)
  2. How to Block Access to Standard Login Flow and Comment Flow
  3. Strategies for coping with hyperagressive spambots?
  4. Sanitizing comments or escaping comment_text()
  5. wp_insert_comment and security
  6. Is WordPress vulnerable to “comment posting forgery”?
  7. Admin can enter JavaScript – potential security risk?
  8. reCaptcha doesnt appear in comment (manual or plugin)
  9. WordPress scruity issue – Totally disable all comments by CSS — secure enough?
  10. How are readers authenticated for leaving comments?
  11. WordPress Commenting System User access and Security
  12. How do I comment out a block of tags in XML?
  13. Commenting in user profile page?
  14. How to enable comments for pending and draft posts?
  15. Reverse comment pagination numbers
  16. Using Disqus, how to stop storing comments in wp database?
  17. Custom Field Added In Comment Form Not Showing In Edit
  18. Get threaded comments number
  19. SQL query to delete comments older than 90 days?
  20. How to refresh the page when an admin trashes a comment from Comments in the admin site?
  21. Let user edit his own comment
  22. Get the number of comments awaiting moderation
  23. Changing position of cancel_comment_reply_link and other elements of comment form
  24. What does the “$depth” parameter in the Walker_Comment stand for?
  25. Send Notifications to All Admins
  26. Comment pagination – How to show determined number of comments on the first page?
  27. How to allow a particular role like Contributor be able to only view pending comments and approve them?
  28. Disable comments
  29. Sort comments by karma
  30. Bots posting comments on pages
  31. default callback function in wp_list_comments
  32. Why are authors allowed to approve comments on their posts? How to revoke privilege?
  33. Comment form connection to Gravity Forms
  34. Add classname comment template from functions.php
  35. Comments deactivated
  36. List user comments in author page
  37. Filter custom posts with / without comments
  38. Create comments.php form of custom HTML code
  39. Display comments on homepage of twenty seventeen theme
  40. How to dynamic Heart Like in WordPress?
  41. To whom do emails get sent via the WordPress comments form?
  42. Comment Moderation and CDN Caching
  43. Comments feed – Undefined named entity: ndash
  44. Assign author to comment from post edit page
  45. The “\” is missing when comments is updated
  46. warnCommentChanges always being triggered on update
  47. how get comments only on post of current logged in user?
  48. How to get comment id in callback function?
  49. Posting comment returns 404
  50. How-To and Troubleshooting Canonical Links for Paginated Comments
  51. Get declared variable in single.php to work in comments.php without re-declaring it [closed]
  52. What is causing wp-comments-post.php to redirect to the browser’s IP address?
  53. Extra Title field for Comments
  54. Comments offset
  55. How to hide trackbacks on wp-admin/edit-comments.php
  56. Using a static callback on wp_insert_comment
  57. WordPress Recent Comments Widget exclude own comments
  58. How to prevent multiple comments
  59. Displaying comments on pages distinguished by GET IDs
  60. How to get comment images stored as serialized comment meta
  61. Hide comments on specific pages, not just disable future comments
  62. Is there a hook to update / replace values in the “Enable threaded (nested) comments x levels deep” drop down?
  63. Add comment_meta to wp_comment_reply
  64. How to change comment texts that has a specific comment_ID – Hook into comment
  65. How do comments work?
  66. Can’t reply to comments [closed]
  67. counting trackbacks, pingbacks and comments of a post
  68. Adding comments section to website integrated WordPress instance
  69. ask and edit an extra comment field
  70. Modify links in user comments
  71. How indicate when a functions was upgraded in relationship to the entire program [closed]
  72. Empty comments field or
  73. What templates/funtions needed in custom theme to allow comments the new 3.0 way
  74. Default Gravatar not showing for pings
  75. How to filter comments by comment_meta
  76. Prevent users to delete comments from trash
  77. How can I hide comment of the authors from their published posts?
  78. How to customize ‘children comments’ in WordPress?
  79. How to display replies to his comments in user profile of current user
  80. Top rated posts Average rating issue
  81. stop url changing when user comments
  82. Keep comment author’s name on their comment even when their account is deleted
  83. How to add a class to comment submit button?
  84. Comments.php is not getting called on main blog page
  85. Allowing comments on author pages
  86. How can I see whether a commenter has subscribed to be notified of replies / other comments to a post
  87. WordPress Comments – Only show part of user name
  88. Where is the Leave a Comment link set
  89. Broken comments section – WordPress 2014 Theme
  90. Need an advice about comments
  91. I want to fill the comment with the comment count?
  92. delete user not working
  93. same comment list for two posts
  94. Replace do_action() with a normal submit form in comments.php
  95. How to remove or customize “Comment” in comments form?
  96. edit-comments.php in Admin – how to change ‘Comments’ title?
  97. Comments on pages not appearing, even though I enabled them
  98. check if a comment was made by a registered user
  99. Stop future commenting on specific post
  100. Add ACF Quick Edit Columns on Comments

Leave a Comment

techhipbettruvabetnorabahisbahis forumutaraftarium24eduseduseduedusedusedusedueduseduedus