Hello, I set up the plugin and working fine with my work email (email@example.com). But is not working with hotmail, gmail and yahoo. The name of the site is https://gatzonhs.gr/rantevou/ and you can check it. Best regards George
in order to use mail from any other domain (hotmail, gmail and yahoo) you will need to add SMTP plugin for sending the mail. There is no mail server that will accept email from https://gatzonhs.gr/ that is having FROM field from gmail etc. Instead of sending mail from your server you should send emails via SMTP.