好烦的jmail问题,特向各位大侠请教？

[flyolive]

错误类型：
jmail.SMTPMail (0x8000FFFF)
The message was undeliverable. All servers failed to receive the message
下面是源代码：

Set JMail=Server.CreateObject("JMail.SMTPMail")
JMail.ContentType="text/html"
JMail.Encoding = "base64"
JMail.Charset="gb2312"
JMail.ServerAddress = "mail.beesnet.net"
JMail.Sender = "[e-mail]"

JMail.Subject = "chinabs"
JMail.AddRecipient dzyj
JMail.Body ="asdfasdf"

JMail.Execute
JMail.Close
Set JMail = Nothing

[yangzixp]

我以前在本机测试也经常出这个提示，换了台机器一下就好了。