Reply To: PHP Warning. UTF-8 and json_encode

Yes I did. I tried a lot of SMTP plugins, but the issue occurs before sending. The data does not reach the smtp server, I checked so in my server logs, so I think is something related with the form. What could be happening? Do you have any idea? Can I write some code in any place of you plugin in order to store any time it tries to send the form? Can you tell me where I must write this debug code?
I am really desperate with this problem.
Thank you!