未收到TYPO3默认表格的邮件

I have used default TYPO3 form into my application and configure email id in Recipient Email.

The problem is that form is not working with all email ids. what is the problem with this and how to check?

There are many possiblities why the mail don't reached the receiver.

First: It can be detected as spam because your Server is not allowed to send mails from the domain setted at [MAIL][defaultMailFromAddress] in the install tool or your sender settings in the form settings. Here it can be helped to set an valid SPF record in the nameserver of your domain.

Second: The junk or spam filter on the client side push the mail into the junk or spam folder because some keywords in your mail or too little content.

Third: Your server has an restriction of outgoing mails over the php mail command.

Maybe you can try to set [MAIL][transport] in your install tool to smtp and set [MAIL][transport_smtp_server], [MAIL][transport_smtp_username] and [MAIL][transport_smtp_password] to the corresponding settings.