PHP sends mail configuration with its own mail function

I have used a third party (Phpmailer) to send mail. Today, I suddenly wanted to try out the mail function that came with PHP, but found that no matter how it was configured, the message could not be sent.

Would you like to ask what is the reason for this?

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I have used a third party (Phpmailer) to send mail. Today, I suddenly wanted to try out the mail function that came with PHP, but found that no matter how it was configured, the message could not be sent.

Would you like to ask what is the reason for this?

The Mail function relies on the native MTA, and it's OK to install an MTA like Sendmail/postfix.

LZ have to experiment over sendmail, I tested under the win8.1, seemingly not

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