Plugin Author
WPKube
(@wpkube)
Hi @ssukdevhotmailcom
The only difference between the copy and the original is the recipient email address. Other than that everything is exactly the same.
I think it gets flagged by either the server before it sends the email or by the email provider (when it should arrive).
Can you install the plugin WP Mail Loggin, it logs all request for sending emails.
Then submit the contact form and check the log in the plugin (WP admin > Tools > WP Mail Log) to see if it’s on the list and if it shows any errors associated to it.
If it is on the list and shows no errors, then it’s definitely flagged and stopped by the server or by the email provider.