I have several Wordpress sites hosted on different servers, all with contact forms managed by Contact Forms 7.
However, many of these forms are presenting a problem in sending forms where the email is not received, but no error message is generated by the plugin at the time of sending.
However, sending e-mail is not only done for mail with domains, for example, [email protected]. Gmail and Hotmail emails, for example, receive the form normally.
How can I be solving this problem?