通过 Gmail 在 .NET 中发送电子邮件

问题描述

我没有依靠主机发送电子邮件，而是考虑使用我的 Gmail 帐户发送电子邮件.这些电子邮件是发给我在演出中演奏的乐队的个性化电子邮件.

Instead of relying on my host to send an email, I was thinking of sending the email messages using my Gmail account. The emails are personalized emails to the bands I play on my show.

可以吗?

推荐答案

请务必使用 System.Net.Mail，而不是已弃用的 System.Web.Mail.使用 System.Web.Mail 执行 SSL 是一堆乱七八糟的扩展.

Be sure to use System.Net.Mail, not the deprecated System.Web.Mail. Doing SSL with System.Web.Mail is a gross mess of hacky extensions.

using System.Net;
using System.Net.Mail;

var fromAddress = new MailAddress("[email protected]", "From Name");
var toAddress = new MailAddress("[email protected]", "To Name");
const string fromPassword = "fromPassword";
const string subject = "Subject";
const string body = "Body";

var smtp = new SmtpClient
{
    Host = "smtp.gmail.com",
    Port = 587,
    EnableSsl = true,
    DeliveryMethod = SmtpDeliveryMethod.Network,
    UseDefaultCredentials = false,
    Credentials = new NetworkCredential(fromAddress.Address, fromPassword)
};
using (var message = new MailMessage(fromAddress, toAddress)
{
    Subject = subject,
    Body = body
})
{
    smtp.Send(message);
}

另外转到 Google 帐户 >安全页面，然后查看登录 Google >两步验证设置.

• 如果已启用，则您必须生成一个密码，允许 .NET 绕过两步验证.为此，请点击登录 Google >应用密码，选择app=Mail，设备=Windows Computer，最后生成密码.使用 fromPassword 常量中生成的密码，而不是标准的 Gmail 密码.
• 如果它被禁用，那么您必须开启安全性较低的应用访问，不推荐！所以最好启用两步验证.

• If it is enabled, then you have to generate a password allowing .NET to bypass the 2-Step Verification. To do this, click on Signing in to Google > App passwords, select app = Mail, and device = Windows Computer, and finally generate the password. Use the generated password in the fromPassword constant instead of your standard Gmail password.
• If it is disabled, then you have to turn on Less secure app access, which is not recommended! So better enable the 2-Step verification.

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