PHP uses SMTP service to send mail second

$jieguo = $smtp->sendmail ($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype); $smtpserver = " Smtp.exmail.qq.com ";//smtp server $smtpserverport =25;//smtp server port $smtpusermail =" User mailbox ";//smtp Server user Mailbox $smtpemailto =" Send to who ";//Send to who $smtpuser =" SMTP server user account ";//smtp Server user account $smtppass =" User password for SMTP server ";//smtp Server user Password $mailsubject = iconv (' UTF-8 ', ' GB2312 ', $row [' subject ']);//mail Subject $mailbody = Iconv (' UTF-8 ', ' GB2312 ', $row [' message ']);//message content $mailtype = "TXT" ;//Message Format (html/txt), TXT for text mail

PHP uses SMTP service to send mail second