主题：[求助]发送mail失败

 单独用账号密码测试。

http://www.foxtable.com/help/topics/1404.htm

换一种发送，看看你

Dim client As New System.Net.Mail.SmtpClient()
client.Host = "smtp.126.com"
client.Port = 25
client.EnableSsl = False
client.Credentials = New System.Net.NetworkCredential("lin_hailun@126.com", "6849338.")
client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network
Dim message As New System.Net.Mail.MailMessage("lin_hailun@126.com", "2450314695@qq.com")
message.Subject = "邮件测试"
message.BodyEncoding = System.Text.Encoding.UTF8

Dim content As String

content &= "这是文字" & vbcrlf
content &= "也是文字"

message.Body = content

Try
    client.Send(message)
    msgbox("发送成功")
Catch ex As Exception
    msgbox("发送失败:" & ex.message)
End Try