从vb.net 2010发送电子邮件时出错 [英] error while sending email from vb.net 2010

问题描述

Imports System.Net
Imports System.Net.Mail

Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        lblDateTime.Text = "Date: " & Date.Today() & " " & "Time: " & TimeOfDay()

    End Sub

    Private Sub btnSend_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSend.Click
        Try
            Dim email As New MailMessage()
            Dim smtp As New SmtpClient()

            smtp.UseDefaultCredentials = False
            smtp.Credentials = New Net.NetworkCredential(txtUsername.Text, txtPassword.Text)
            smtp.Port = 465
            smtp.EnableSsl = True
            smtp.Host = "smtp.gmail.com"

            email = New MailMessage()
            email.From = New MailAddress(txtUsername.Text)
            email.To.Add(txtTo.Text)
            email.Subject = txtSubject.Text
            email.IsBodyHtml = False
            email.Body = richTxtBody.Text
            email.Priority = MailPriority.High

            smtp.Send(email)
            MsgBox("Message Sent Successfully.", MsgBoxStyle.Information)

        Catch ex As Exception
            MsgBox(ex.Message, MsgBoxStyle.Critical)

        End Try
    End Sub
End Class

请帮我解决错误...我使用gmail smtp服务器587的端口，但应用程序给出了异常smtp服务器没有响应。所以我用谷歌搜索并发现gmail新的smtp端口为465我用过。现在，如果我点击发送按钮，应用程序会延迟一段时间，最后会出现错误操作已经超时...请问代码有什么问题，我的意思是我做错了什么。或者我是否必须配置我的Gmail帐户以允许我将其用作smtp的网关？ 。

Please help me with the error... I used the port for the gmail smtp server 587 but the application gave an exception "smtp server not responding". so i googled and discovered gmail new smtp port to be 465 which i used. Now if i click the send button, the application delays for some minute and finally gives the error "the operation has timed out" ... please what is the problem with the code, i mean what am i doing wrong. or do i have to configure my gmail account to allow me use it as a gateway for smtp? .

推荐答案

您将无法使用Google电子邮件服务器发送电子邮件。

我认为不可能 - 如果是是的，我相信会收取费用。

You will not be able to send email using the Google email server.
I dont think it is possible - and if it is, I'm sure it will be charged.

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