Unknow sender

  • Hello,

    I’ve this issue: everytime that someone uses contact form, in my mail I receive a message with “Unknow sender”.
    Everything in the configuration of the form is right, but I can’t see the sender when I receive a mail.
    What can I do?

    Thank you all.

    https://www.ads-software.com/plugins/contact-form-7/

    Edit for other informations: if I activate a reCaptcha, I can’t send more mail. I can’t press “submit” button. Without reCaptcha there’s no problem to send, anyway without sender. What is going wrong with this plugin?

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