SMTP安全连接和认证 [英] SMTP secure connection and authentication
本文介绍了SMTP安全连接和认证的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我一直在思索这几天，没有成功，我无法查明确切原因我code不能与Gmail的SMTP服务器验证。我已经确定的事：
I have been mulling over this for a few days, and without success I cannot pinpoint the exact cause for my code not authenticating with the smtp gmail server. What I have made sure to do:
- 设置的Gmail为接受安全性较低的应用
- 2的方式来检验是关闭
- 验证码的用途是关闭
- IIS 6 SMTP
- 网页codeD正确使用asp.net C＃
- 端口587出站和入站设置为允许所有
这里是code
.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net.Mail;
using System.Net;
public partial class Contact : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Btn_Submit_Click(object sender, EventArgs e)
{
MailMessage mailMessage;
SmtpClient smtpClient;
try
{
mailMessage = new MailMessage();
mailMessage.To.Add("013blitz@gmail.com");
mailMessage.From = new MailAddress("crebrum.web.design@gmail.com");
mailMessage.Subject = "ASP.NET e-mail test";
mailMessage.Body = "Hello world,\n\nThis is an ASP.NET test e-mail!";
smtpClient = new SmtpClient("smtp.gmail.com");
smtpClient.Port = 587;
NetworkCredential nc = new NetworkCredential("crebrum.web.design@gmail.com", "Meowqwe789doG");
smtpClient.Credentials = nc;
smtpClient.EnableSsl = true;
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
smtpClient.UseDefaultCredentials = false;
smtpClient.Send(mailMessage);
//Response.Write("E-mail sent!");
}
catch (Exception ex)
{
//Response.Write("Could not send the e-mail - error: " + ex.Message);
}
}
}
HTML
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage/MasterPage.master" AutoEventWireup="true" CodeFile="Contact.aspx.cs" Inherits="Contact" %>
<asp:Content ID="Content1" ContentPlaceHolderID="title" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="contentbody" Runat="Server">
<div class="contact">
<div class="contact-heading text-center">
<div class="container">
<div class="row">
<div class="col-md-6">
<h1>Contact Us</h1>
<div class="headingpng">
<img src="img/heading.png" />
</div>
</div>
</div>
</div>
</div>
</div>
<div id="contact-form" class="clearfix">
<h4 class="text-center">
Please fill in the contact form below with any questions you may have.
</h4>
<ul id="errors" class="">
<li id="info">
There were some problems with your form submission:
</li>
</ul>
<p id="success">
Thanks for your message! We will get back to you ASAP!
</p>
<div>
<label for="name">Name: <span class="required">*</span></label>
<input type="text" id="name" name="name" value="" placeholder="John Doe" required="required" autofocus="autofocus" />
<asp:TextBox runat="server" ID="Tb_Name" ></asp:TextBox>
<label for="email">Email Address: <span class="required">*</span></label>
<input type="email" id="email" name="email" value="" placeholder="johndoe@example.com" required="required" />
<label for="telephone">Telephone: </label>
<input type="tel" id="telephone" name="telephone" value="" />
<label for="enquiry">Enquiry: </label>
<select id="enquiry" name="enquiry">
<option value="general">General</option>
<option value="sales">Sales</option>
<option value="support">Support</option>
</select>
<label for="message">Message: <span class="required">*</span></label>
<textarea id="message" name="message" placeholder="Your message must be greater than 20 charcters" required="required" data-minlength="20"></textarea>
<span id="loading"></span>
<%--<input type="submit" value="Submit" id="submit-button" />--%>
<asp:Button runat="server" ID="Btn_Submit" Text="Submit" OnClick="Btn_Submit_Click" />
<p id="req-field-desc"><span class="required">*</span> indicates a required field</p>
</div>
</div>
</asp:Content>
正如我已经指出我已经找遍了用于修复，我到底都拿出的是，我做正确的HTML和C＃，一切似乎都工作长达到catch（异常前）code线，然后把我这个
As I have stated I have searched all over for the fix, what I have come up with in the end is that I am doing the html and c# properly, everything seems to work up to the catch (Exception ex) code line, which then sends me this
[System.Net.Mail.SmtpException] = {SMTP服务器要求安全连接或客户端未通过身份验证服务器响应为：5.5.1需要验证了解更多}
[System.Net.Mail.SmtpException] = {"The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at"}
如果任何人有这将是伟大的任何建议！
If anyone has any suggestions that would be great!
推荐答案
您只需要更改默认凭据为true。
You only need to change default credentials to true.
smtpClient.UseDefaultCredentials = true;
下面是完整的code：
Here is the complete code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Net.Mail;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Btn_Submit_Click(object sender, EventArgs e)
{
MailMessage mailMessage;
SmtpClient smtpClient;
try
{
mailMessage = new MailMessage();
mailMessage.To.Add("013blitz@gmail.com");
mailMessage.To.Add("crebrum.web.design@gmail.com");
mailMessage.From = new MailAddress("crebrum.web.design@gmail.com");
mailMessage.Subject = "Change your password";
mailMessage.Body = "Hello Crebrum,\n\nPlease change your password for crebrum.web.design@gmail.com!" +
"You posted the password on stack overflow and anyone can access your email now.";
smtpClient = new SmtpClient("smtp.gmail.com");
smtpClient.Port = 587;
NetworkCredential nc = new NetworkCredential("crebrum.web.design@gmail.com",
"{Here is where I masked your password. You are welcome}");
smtpClient.Credentials = nc;
smtpClient.EnableSsl = true;
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
smtpClient.UseDefaultCredentials = true;
smtpClient.Send(mailMessage);
//Response.Write("E-mail sent!");
}
catch (Exception ex)
{
//Response.Write("Could not send the e-mail - error: " + ex.Message);
}
}
}
这篇关于SMTP安全连接和认证的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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