第一种：修改config.inc.php中的[smtp]，配置为默认本地发送，用hotmail用户做接收，调试成功！（本人未尝试这种）
// ----------------------------------------------------------------------------
/** [SMTP] */
// Developer Note:
// these config variable names has been choosed to maintain compatibility
// with code taken from Mantis.
//
// SMTP server Configuration ("localhost" is enough in the most cases)
$g_tl_admin_email = 'tl_admin@127.0.0.1';#按此配置即可
$g_from_email = 'testlink_system@127.0.0.1';#按此配置即可
$g_return_path_email = 'no_replay@127.0.0.1';#按此配置即可
//
# Urgent = 1， Not Urgent = 5， Disable = 0
$g_mail_priority = 5;
//
# Taken from mantis for phpmailer config
//define ("SMTP_SEND"，2);
//$g_phpMailer_method = SMTP_SEND;
//
// SMTP Configuration
$g_smtp_host = 'localhost'; # SMTP server
//
// Configure only if SMTP server requires
$g_smtp_username = ''; # user
$g_smtp_password = ''; # password
// ----------------------------------------------------------------------------
　　第二种：修改config.inc.php中的[smtp]，配置为公司邮箱发送，用我公司邮箱调试成功！（本人调试成功）
// ----------------------------------------------------------------------------
/** [SMTP] */
// Developer Note:
// these config variable names has been choosed to maintain compatibility
// with code taken from Mantis.
//
// SMTP server Configuration ("localhost" is enough in the most cases)
$g_smtp_host        = 'smtp.corp.com';  # SMTP 服务必须配置，可配置你公司发送邮件服务器地址
# Configure using custom_config.inc.php
$g_tl_admin_email     = 'test@corp.com'; #问题错误通知，配置你公司的邮箱
$g_from_email         = 'test@corp.com';  # 收到邮件看到的发送地址
$g_return_path_email  = 'test@corp.com';#如果收到邮件的人进行回复的邮件地址
# Urgent = 1， Not Urgent = 5， Disable = 0
$g_mail_priority = 5;
# Taken from mantis for phpmailer config
define ("SMTP_SEND"，2);
$g_phpMailer_method = SMTP_SEND;#使用SMTP协议进行发送
// Configure only if SMTP server requires authentication
$g_smtp_username    = 'test@corp.com';  # smtp发送的用户名
$g_smtp_password    = 'test';  # 发送用户的密码
// ----------------------------------------------------------------------------