Why does the linux-SMTP server reject emails sent by the PHP function?

{Code...} log on to the server using mail-s & quot; test & quot; ***** @ qq.com to test whether the smtp server can send emails. Why is the function written in PHP rejected? This function used to work and has never been moved. {Code ...}

SMTP server error: 5.7.1 <********@qq.com>: Relay access denied

Log on to the server and use mail-s "test" ***** @ qq.com to test whether the smtp server can send emails. Why is the function written in PHP rejected? This function used to work and has never been moved.

Public function SendMail ($ address, $ title, $ message) {vendor ('phpmailer. class # phpmailer '); $ mail = new PHPMailer (); // Set PHPMailer to use the SMTP server to send an Email $ mail-> IsSMTP (); // set HTML $ mail-> ishtml (true); // sets the character encoding of the email. If this parameter is not specified, it is 'utf-8' $ mail-> CharSet = 'utf-8'; // add the recipient address, you can use it multiple times to add multiple recipients $ mail-> AddAddress ($ address); // Set the email Body $ mail-> Body = $ message; // Set the From Field of the mail header. $ Mail-> From = C ('mail _ address'); // Set the SENDER name $ MAIL-> FromName = C ('mail _ sender '); // Set the mail title $ mail-> Subject = $ title; // Set the SMTP server. $ Mail-> Host = C ('mail _ SMTP '); // Set it to "verify" $ MAIL-> SMTPAuth = true; // Set the user name and password. $ Mail-> Username = C ('mail _ loginname'); $ MAIL-> Password = C ('mail _ password'); // send an email. $ Mail-> Send (); return $ mail ;}

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SMTP server error: 5.7.1 <********@qq.com>: Relay access denied

Log on to the server and use mail-s "test" ***** @ qq.com to test whether the smtp server can send emails. Why is the function written in PHP rejected? This function used to work and has never been moved.

Public function SendMail ($ address, $ title, $ message) {vendor ('phpmailer. class # phpmailer '); $ mail = new PHPMailer (); // Set PHPMailer to use the SMTP server to send an Email $ mail-> IsSMTP (); // set HTML $ mail-> ishtml (true); // sets the character encoding of the email. If this parameter is not specified, it is 'utf-8' $ mail-> CharSet = 'utf-8'; // add the recipient address, you can use it multiple times to add multiple recipients $ mail-> AddAddress ($ address); // Set the email Body $ mail-> Body = $ message; // Set the From Field of the mail header. $ Mail-> From = C ('mail _ address'); // Set the SENDER name $ MAIL-> FromName = C ('mail _ sender '); // Set the mail title $ mail-> Subject = $ title; // Set the SMTP server. $ Mail-> Host = C ('mail _ SMTP '); // Set it to "verify" $ MAIL-> SMTPAuth = true; // Set the user name and password. $ Mail-> Username = C ('mail _ loginname'); $ MAIL-> Password = C ('mail _ password'); // send an email. $ Mail-> Send (); return $ mail ;}

PHPMailer uses functions that are frequently disabled by the ISP, such as popen. you can use phpinfo () to query the value of disable_functions to see if function is disabled.

Thanks for your answers. Finally, the error is found because/var/run/saslauthd is changed to 710 after sasl is restarted. Therefore, chmod is required.

I use the thinkphp framework. can I solve this problem?