WordPress’ internal email validation is very weak. I’ve written a plugin some time ago to catch most cases where WordPress fails: Extend Email Checks.
It uses PHP’s filter_var(). But there are some edge cases, where it doesn’t work good enough. Give it a try.
Related Posts:
- Add option to disable comments on a per posts basis?
- What should I do to make generated avatars different for anonymous comments?
- Check If comment author is registered
- How do I set up real anonymous posting in bbpress forums? [closed]
- How do I turn off wordpress comments ability to capture a users ip address?
- Success message in comment form
- How to allow the reply link to remain on the comment form after I have reached my 10 nested comment limit?
- Is there a hook for comment author link?
- How can I edit the email sent when a new comment is received?
- How to remove or replace the log-in link for comment replies?
- Change the HTML output of comments
- How to Block Access to Standard Login Flow and Comment Flow
- Add Comment Custom Field
- Upload images with comment
- Prevent Contributor to show comment list
- where to modify get_comment_author_link()?
- Does Akismet plugin expose any hooks, functions, class that can work with custom code?
- Change language of comments template
- Comments Feed & Custom Post Statuses
- How to enable comments options?
- WordPress comment count to include attachment comments
- Remove “Comments are closed” Notice from Custom Post Type template
- Displaying comments with a walker: how to distinguish between parent and child comments
- Count parent comments & replies separately?
- How to modify comments form using comment_form()?
- Capability for allowing user to post own comments without moderation
- Comment form problem with comment_author_url and HTML5 input placeholders
- How would I count the number of times a comment meta field’s value is in a post’s entire comments?
- Pings and replies
- stackexchange-like submit comment window
- Cannot get local avatars to show [closed]
- Limit user to one comment
- WordPress comments on users profile
- wordpress threaded comments – customize nested ul / how child ul is displayd
- How to make a secure blog that is completely private?
- identify and delete spam comments from 3000 pending comments
- Hide comments column in WordPress backend
- How unrequire comment text in wordpress post
- Auto delete comment if Contains
- How would I add the comment count to this sub-pages of current page snippet
- API Hook for After Commenting (for sharing on Facebook)
- Make WordPress process admin group comments using $allowedtags
- How to create a seperate commenting system?
- How to handle upvotes and downvotes of disqus comments after importing disqus comments to wordpress?
- Only admin can see comments on post or page
- All users/comments suspected as bot? [closed]
- Show comments of a user post only when they are login
- comments in Admin
- How to get and use the the number of days since the last comment?
- Trying to post a wordpress comment on my site redirects to 127.0.0.1
- How do I add class to an admin comment?
- Best way to tell if a comment is from a user?
- Adding SQL source code to comments
- How to control size of comments popup window?
- How to make comments private for commentor and post author
- Name of comment field differs on different sites
- WordPress Spam Comment Filter
- Which hook do I use to edit pending comment count on wordpress dashboard?
- comment button shows only logged in users wordpress
- Getting comments of an specefic user
- How can I embed comments plugin to my own website?
- get only one last comment from each post
- Applying same style to all the comments on the page
- Customise Comment form
- Limit action in comment according to IP
- assumed as comment line
- stumped on add_action hook to delete_comment – any ideas?
- Can I create a new comment type?
- Avoiding calls to theme-compat
- Allow tags between shortcode in comments
- How to load new posts from wordpress db into wordpress homepage without refreshing the site?
- Delete/Spam Comment Button
- Who approved a comment, to show up in dashboard
- comments.php remove date/time’s #hyperlink
- comment just attachment .. reply just text … can I do that?
- I have an odd field with a purple background, mentioning HTML-codes to use while leaving comments
- No comment Section but still got a Comment
- How to prevent users/authors from seing IP/email of new commentators?
- Why are my threaded comments not quite working? [closed]
- $post->comment_status always returns ‘closed’
- Order comments in admin by custom date
- WordPress Comments – Divide by conversation like Medium.com
- edit comments in front end
- How to replace anonymous comment form with a registration form on wordpress?
- How to get the 5 most recent comments and each comment 5 most recent replies (children)
- Redirect first time comments
- Posting XML in comment section
- comment files and s
- Comments – Ensure the correct field is highlighted for nested replies
- How to hold all comments for moderation, including author’s comments on own post
- Recent comments per tagged post?
- Subscribe to a post’s comments without posting a comment yourself
- WordPress error when sending comment
- WordPress Page Template: Comment Filtering with Querystring
- comments are going to spam
- Why default comment fields don’t show up?
- How to enable truly anonymous posting in bbPress forums? [closed]
- comment awaiting moderation
- How do you fetch the authors email or IP from /comments? (REST API)
- How can I filter the user avatar displayed in comments? – get_avatar_url filter works everywhere but not in comments