If you are sure that Contact Form 7 has been set up correctly, I would start by trying to send an email using PHP’s basic email function. The 2 operate using the same function. That will tell you if the mail function even works.
Furthermore if PHP’s mail function doesn’t work, you can try sending using SMTP. There are several plugins that will allow Contact Form 7 to do this. Postman SMTP is one of the more popular ones.
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This reply was modified 7 years, 11 months ago by kyjus25.