C# 通过 Gmail 在 .NET 中发送电子邮件
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原文地址: http://stackoverflow.com/questions/32260/
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Sending email in .NET through Gmail
提问by Mike Wills
Instead of relying on my host to send an email, I was thinking of sending the email messages using my Gmailaccount. The emails are personalized emails to the bands I play on my show.
我没有依靠我的主机发送电子邮件，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。
Is it possible to do it?
有可能做到吗？
采纳答案by Domenic
Be sure to use System.Net.Mail, not the deprecated System.Web.Mail. Doing SSL with System.Web.Mailis a gross mess of hacky extensions.
一定要使用System.Net.Mail，而不是弃用的System.Web.Mail. 使用 SSLSystem.Web.Mail是一堆乱七八糟的扩展。
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);
}
回答by Donny V.
The above answer doesn't work. You have to set DeliveryMethod = SmtpDeliveryMethod.Networkor it will come back with a "client was not authenticated" error. Also it's always a good idea to put a timeout.
上面的答案不起作用。您必须进行设置，DeliveryMethod = SmtpDeliveryMethod.Network否则它会返回“客户端未通过身份验证”错误。此外，设置超时总是一个好主意。
Revised code:
修改后的代码：
using System.Net.Mail;
using System.Net;
var fromAddress = new MailAddress("[email protected]", "From Name");
var toAddress = new MailAddress("[email protected]", "To Name");
const string fromPassword = "password";
const string subject = "test";
const string body = "Hey now!!";
var smtp = new SmtpClient
{
Host = "smtp.gmail.com",
Port = 587,
EnableSsl = true,
DeliveryMethod = SmtpDeliveryMethod.Network,
Credentials = new NetworkCredential(fromAddress.Address, fromPassword),
Timeout = 20000
};
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body
})
{
smtp.Send(message);
}
回答by tehie
Here is my version: "Send Email In C # Using Gmail".
这是我的版本：“使用 Gmail 在 C# 中发送电子邮件”。
using System;
using System.Net;
using System.Net.Mail;
namespace SendMailViaGmail
{
class Program
{
static void Main(string[] args)
{
//Specify senders gmail address
string SendersAddress = "[email protected]";
//Specify The Address You want to sent Email To(can be any valid email address)
string ReceiversAddress = "[email protected]";
//Specify The password of gmial account u are using to sent mail(pw of [email protected])
const string SendersPassword = "Password";
//Write the subject of ur mail
const string subject = "Testing";
//Write the contents of your mail
const string body = "Hi This Is my Mail From Gmail";
try
{
//we will use Smtp client which allows us to send email using SMTP Protocol
//i have specified the properties of SmtpClient smtp within{}
//gmails smtp server name is smtp.gmail.com and port number is 587
SmtpClient smtp = new SmtpClient
{
Host = "smtp.gmail.com",
Port = 587,
EnableSsl = true,
DeliveryMethod = SmtpDeliveryMethod.Network,
Credentials = new NetworkCredential(SendersAddress, SendersPassword),
Timeout = 3000
};
//MailMessage represents a mail message
//it is 4 parameters(From,TO,subject,body)
MailMessage message = new MailMessage(SendersAddress, ReceiversAddress, subject, body);
/*WE use smtp sever we specified above to send the message(MailMessage message)*/
smtp.Send(message);
Console.WriteLine("Message Sent Successfully");
Console.ReadKey();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.ReadKey();
}
}
}
}
回答by Ranadheer Reddy
This is to send email with attachement.. Simple and short..
这是发送带有附件的电子邮件..简单而简短..
source: http://coding-issues.blogspot.in/2012/11/sending-email-with-attachments-from-c.html
来源：http: //coding-issues.blogspot.in/2012/11/sending-email-with-attachments-from-c.html
using System.Net;
using System.Net.Mail;
public void email_send()
{
MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
mail.From = new MailAddress("your [email protected]");
mail.To.Add("[email protected]");
mail.Subject = "Test Mail - 1";
mail.Body = "mail with attachment";
System.Net.Mail.Attachment attachment;
attachment = new System.Net.Mail.Attachment("c:/textfile.txt");
mail.Attachments.Add(attachment);
SmtpServer.Port = 587;
SmtpServer.Credentials = new System.Net.NetworkCredential("your [email protected]", "your password");
SmtpServer.EnableSsl = true;
SmtpServer.Send(mail);
}
回答by Yasser Shaikh
Source: Send email in ASP.NET C#
Below is a sample working code for sending in a mail using C#, in the below example I am using google's smtp server.
下面是使用 C# 发送邮件的示例工作代码，在下面的示例中，我使用的是 google 的 smtp 服务器。
The code is pretty self explanatory, replace email and password with your email and password values.
该代码非常容易解释，用您的电子邮件和密码值替换电子邮件和密码。
public void SendEmail(string address, string subject, string message)
{
string email = "[email protected]";
string password = "put-your-GMAIL-password-here";
var loginInfo = new NetworkCredential(email, password);
var msg = new MailMessage();
var smtpClient = new SmtpClient("smtp.gmail.com", 587);
msg.From = new MailAddress(email);
msg.To.Add(new MailAddress(address));
msg.Subject = subject;
msg.Body = message;
msg.IsBodyHtml = true;
smtpClient.EnableSsl = true;
smtpClient.UseDefaultCredentials = false;
smtpClient.Credentials = loginInfo;
smtpClient.Send(msg);
}
回答by Simon_Weaver
Changing sender on Gmail / Outlook.com email:
更改 Gmail / Outlook.com 电子邮件的发件人：
To prevent spoofing - Gmail/Outlook.com won't let you send from an arbitrary user account name.
为防止欺骗 - Gmail/Outlook.com 不允许您使用任意用户帐户名发送邮件。
If you have a limited number of senders you can follow these instructions and then set the Fromfield to this address: Sending mail from a different address
如果您的发件人数量有限，您可以按照以下说明操作，然后将该From字段设置为此地址：从不同地址发送邮件
If you are wanting to send from an arbitrary email address (such as a feedback form on website where the user enters their email and you don't want them emailing you directly) about the best you can do is this :
如果您想从任意电子邮件地址（例如用户输入电子邮件的网站上的反馈表，而您不希望他们直接向您发送电子邮件）发送关于您能做的最好的事情：
msg.ReplyToList.Add(new System.Net.Mail.MailAddress(email, friendlyName));
This would let you just hit 'reply' in your email account to reply to the fan of your band on a feedback page, but they wouldn't get your actual email which would likely lead to a tonne of spam.
这将使您只需在您的电子邮件帐户中点击“回复”即可在反馈页面上回复您乐队的粉丝，但他们不会收到您的实际电子邮件，这可能会导致大量垃圾邮件。
If you're in a controlled environment this works great, but please note that I've seen some email clients send to the from address even when reply-to is specified (I don't know which).
如果您处于受控环境中，这很好用，但请注意，即使指定了回复地址（我不知道是哪个），我也看到一些电子邮件客户端发送到发件人地址。
回答by RAJESH KUMAR
If you want to send background email, then please do the below
如果您想发送后台电子邮件，请执行以下操作
public void SendEmail(string address, string subject, string message)
{
Thread threadSendMails;
threadSendMails = new Thread(delegate()
{
//Place your Code here
});
threadSendMails.IsBackground = true;
threadSendMails.Start();
}
and add namespace
并添加命名空间
using System.Threading;
回答by iTURTEV
Here is one method to send mail and getting credentials from web.config:
这是发送邮件和从 web.config 获取凭据的一种方法：
public static string SendEmail(string To, string Subject, string Msg, bool bodyHtml = false, bool test = false, Stream AttachmentStream = null, string AttachmentType = null, string AttachmentFileName = null)
{
try
{
System.Net.Mail.MailMessage newMsg = new System.Net.Mail.MailMessage(System.Configuration.ConfigurationManager.AppSettings["mailCfg"], To, Subject, Msg);
newMsg.BodyEncoding = System.Text.Encoding.UTF8;
newMsg.HeadersEncoding = System.Text.Encoding.UTF8;
newMsg.SubjectEncoding = System.Text.Encoding.UTF8;
System.Net.Mail.SmtpClient smtpClient = new System.Net.Mail.SmtpClient();
if (AttachmentStream != null && AttachmentType != null && AttachmentFileName != null)
{
System.Net.Mail.Attachment attachment = new System.Net.Mail.Attachment(AttachmentStream, AttachmentFileName);
System.Net.Mime.ContentDisposition disposition = attachment.ContentDisposition;
disposition.FileName = AttachmentFileName;
disposition.DispositionType = System.Net.Mime.DispositionTypeNames.Attachment;
newMsg.Attachments.Add(attachment);
}
if (test)
{
smtpClient.PickupDirectoryLocation = "C:\TestEmail";
smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.SpecifiedPickupDirectory;
}
else
{
//smtpClient.EnableSsl = true;
}
newMsg.IsBodyHtml = bodyHtml;
smtpClient.Send(newMsg);
return SENT_OK;
}
catch (Exception ex)
{
return "Error: " + ex.Message
+ "<br/><br/>Inner Exception: "
+ ex.InnerException;
}
}
And the corresponding section in web.config:
以及 web.config 中的相应部分：
<appSettings>
<add key="mailCfg" value="[email protected]"/>
</appSettings>
<system.net>
<mailSettings>
<smtp deliveryMethod="Network" from="[email protected]">
<network defaultCredentials="false" host="mail.exapmple.com" userName="[email protected]" password="your_password" port="25"/>
</smtp>
</mailSettings>
</system.net>
回答by GOPI
Include this,
包括这个，
using System.Net.Mail;
And then,
进而，
MailMessage sendmsg = new MailMessage(SendersAddress, ReceiversAddress, subject, body);
SmtpClient client = new SmtpClient("smtp.gmail.com");
client.Port = Convert.ToInt16("587");
client.Credentials = new System.Net.NetworkCredential("[email protected]","password");
client.EnableSsl = true;
client.Send(sendmsg);
回答by Premdeep Mohanty
I hope this code will work fine. You can have a try.
我希望这段代码能正常工作。你可以试试。
// Include this.
using System.Net.Mail;
string fromAddress = "[email protected]";
string mailPassword = "*****"; // Mail id password from where mail will be sent.
string messageBody = "Write the body of the message here.";
// Create smtp connection.
SmtpClient client = new SmtpClient();
client.Port = 587;//outgoing port for the mail.
client.Host = "smtp.gmail.com";
client.EnableSsl = true;
client.Timeout = 10000;
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.UseDefaultCredentials = false;
client.Credentials = new System.Net.NetworkCredential(fromAddress, mailPassword);
// Fill the mail form.
var send_mail = new MailMessage();
send_mail.IsBodyHtml = true;
//address from where mail will be sent.
send_mail.From = new MailAddress("[email protected]");
//address to which mail will be sent.
send_mail.To.Add(new MailAddress("[email protected]");
//subject of the mail.
send_mail.Subject = "put any subject here";
send_mail.Body = messageBody;
client.Send(send_mail);
