我在 xampp 上运行 Apache，我想使用 sendmail.exe 通过 PHP 发送电子邮件。
我尝试使用 Mercury/32 设置电子邮件服务器，我让它工作了一段时间，但现在 Mercury 的 SMTP 无法启动（端口 25 和 110 不会在 xampp 控制面板中启动），我无法使用它了。
之后我切换到 hMailServer。SMTP、POP3 和 IMAP4 处于活动状态且配置正确。此外，Autoban 功能被禁用，互联网从 IP 范围中删除，结果发送和接收邮件与 Thunderbird 完美配合。
但是当我尝试使用 PHP 脚本发送电子邮件时，我总是会收到以下信息：
"TCPIP" 10228 "2015-07-24 12:53:44.262" "TCP - 127.0.0.1 connected to 127.0.0.1:25."
"DEBUG" 10228 "2015-07-24 12:53:44.262" "TCP connection started for session 158"
"SMTPD" 10228 158 "2015-07-24 12:53:44.262" "127.0.0.1" "SENT: 220 localhost ESMTP"
"SMTPD" 10780 158 "2015-07-24 12:53:44.627" "127.0.0.1" "RECEIVED: EHLO localhost"
"SMTPD" 10780 158 "2015-07-24 12:53:44.627" "127.0.0.1" "SENT: 250-localhost[nl]250-SIZE 20480000[nl]250-AUTH LOGIN[nl]250 HELP"
"SMTPD" 10228 158 "2015-07-24 12:53:44.627" "127.0.0.1" "RECEIVED: AUTH LOGIN"
"SMTPD" 10228 158 "2015-07-24 12:53:44.627" "127.0.0.1" "SENT: 334 VXNlcm5hbWU6"
"SMTPD" 11188 158 "2015-07-24 12:53:44.627" "127.0.0.1" "RECEIVED: YWRtaW4="
"SMTPD" 11188 158 "2015-07-24 12:53:44.627" "127.0.0.1" "SENT: 334 UGFzc3dvcmQ6"
"SMTPD" 11188 158 "2015-07-24 12:53:44.627" "127.0.0.1" "RECEIVED: ***"
"SMTPD" 11188 158 "2015-07-24 12:53:44.632" "127.0.0.1" "SENT: 535 Authentication failed. Restarting authentication process."
"DEBUG" 10780 "2015-07-24 12:53:44.632" "The read operation failed. Bytes transferred: 0 Remote IP: 127.0.0.1, Session: 158, Code: 2, Message: End of file"
"DEBUG" 10780 "2015-07-24 12:53:44.632" "Ending session 158"
这是我的php.inimail_function 部分：
[mail function]
; XAMPP: Comment out this if you want to work with an SMTP Server like Mercury
SMTP = localhost
smtp_port = 25
; For Win32 only.
; http://php.net/sendmail-from
sendmail_from = admin@car-services.dz
; XAMPP IMPORTANT NOTE (1): If XAMPP is installed in a base directory with spaces (e.g. c:\program filesC:\xampp) fakemail and mailtodisk do not work correctly.
; XAMPP IMPORTANT NOTE (2): In this case please copy the sendmail or mailtodisk folder in your root folder (e.g. C:\sendmail) and use this for sendmail_path.
; XAMPP: Comment out this if you want to work with fakemail for forwarding to your mailbox (sendmail.exe in the sendmail folder)
sendmail_path = "\"C:\xampp\sendmail\sendmail.exe\" -t"
; XAMPP: Comment out this if you want to work with mailToDisk, It writes all mails in the C:\xampp\mailoutput folder
;sendmail_path="C:\xampp\mailtodisk\mailtodisk.exe"
; Force the addition of the specified parameters to be passed as extra parameters
; to the sendmail binary. These parameters will always replace the value of
; the 5th parameter to mail(), even in safe mode.
;mail.force_extra_parameters =
; Add X-PHP-Originating-Script: that will include uid of the script followed by the filename
mail.add_x_header=Off
; Log all mail() calls including the full path of the script, line #, to address and headers
;mail.log = "C:\xampp\php\logs\php_mail.log"
并且sendmail.ini：
; configuration for fake sendmail
; if this file doesn't exist, sendmail.exe will look for the settings in
; the registry, under HKLM\Software\Sendmail
[sendmail]
; you must change mail.mydomain.com to your smtp server,
; or to IIS's "pickup" directory. (generally C:\Inetpub\mailroot\Pickup)
; emails delivered via IIS's pickup directory cause sendmail to
; run quicker, but you won't get error messages back to the calling
; application.
smtp_server=127.0.0.1
; smtp port (normally 25)
smtp_port=25
; SMTPS (SSL) support
; auto = use SSL for port 465, otherwise try to use TLS
; ssl = alway use SSL
; tls = always use TLS
; none = never try to use SSL
smtp_ssl=auto
; the default domain for this server will be read from the registry
; this will be appended to email addresses when one isn't provided
; if you want to override the value in the registry, uncomment and modify
default_domain=car-services.dz
; log smtp errors to error.log (defaults to same directory as sendmail.exe)
; uncomment to enable logging
error_logfile=error.log
; create debug log as debug.log (defaults to same directory as sendmail.exe)
; uncomment to enable debugging
debug_logfile=debug.log
; if your smtp server requires authentication, modify the following two lines
auth_username=admin
auth_password=password
; if your smtp server uses pop3 before smtp authentication, modify the
; following three lines. do not enable unless it is required.
pop3_server=
pop3_username=
pop3_password=
; force the sender to always be the following email address
; this will only affect the "MAIL FROM" command, it won't modify
; the "From: " header of the message content
force_sender=admin@car-services.dz
; force the sender to always be the following email address
; this will only affect the "RCTP TO" command, it won't modify
; the "To: " header of the message content
force_recipient=
; sendmail will use your hostname and your default_domain in the ehlo/helo
; smtp greeting. you can manually set the ehlo/helo name if required
hostname=
Windows 主机文件：
127.0.0.1 localhost
127.0.0.1 car-services.dz
PHP 脚本：
$headers = "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";
$headers .= "From: admin@car-services.dz";
$subject = "Confirmation mail";
$message = 'This is a confirmation mail';
var_dump(mail("test@car-services.dz", $subject, $message, $headers));
邮件功能总是失败（返回假），这是错误日志：
15/07/24 12:53:44 : Authentication failed. Restarting authentication process.<EOL>
双方（客户端应用程序和服务器）的帐户名和密码相同。