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Articles Web Development ASP.NET Samples

Ngo Tuong Dan, 26 Oct 2015 CPOL

Send Email using Gmail by C#

Send Email using Gmail by C#

Download SendMail-noexe.zip - 61.4 KB

Download SendMail.zip - 81.6 KB

Introduction

Now, gmail is a free webmail also free SMTP server for developer integrated into their app. In this post, we are using C# to send

an email from our app within two steps:

Step 1: Configure mail server via web.configStep 2: Send mail with SmtpClientclass

Background

Understand email processing

Basic about configuration file in ASP.NET

Declare smtp Server Through web.config File

You can provide SMTP server address (DNS name or IP) with hostattribute, in this tip i'm using google mail.

To authenticate with google mail, you must declare your account information as: username and password at password and

username attribute.

Get smtp Server from config File

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varsmtpSection = (SmtpSection)ConfigurationManager.GetSection("system.net/mailSettings/smtp");

stringstrHost = smtpSection.Network.Host;

intport = smtpSection.Network.Port;

stringstrUserName = smtpSection.Network.UserName;

stringstrFromPass = smtpSection.Network.Password;

ConfigurationManager.GetSection("system.net/mailSettings/smtp")help us move to smtp tag and cast to SmtpSection object. The

Network property of smtpSection provide information between network tag.

Provide Authenticatioin Information to Gmail Server

SmtpClient smtp = newSmtpClient(strHost, port);

NetworkCredential cert = newNetworkCredential(strUserName, strFromPass);

smtp.Credentials = cert;

smtp.EnableSsl = true;

Now, we send user/pass to gmail server through SmtpClient and NetworkCredential as above.

Create Mail Content

MailMessage msg = newMailMessage(smtpSection.From, Email);

msg.Subject = "This is the subject";

msg.IsBodyHtml = true;

msg.Body += "This is a title";

msg.Body += "This is a sub title";

msg.Body += "

This is the message.
";
EmailMessage help us create an email:

smtpSection.Fromget email from config file as sender email

Email is reciever emailisBodyHtml format your mail as html code, this help your mail can view as webpage in reading mode

Send Mail

smtp.Send(msg);

Conclusion

Sending email becomes more easy with C# and Gmail. Thanks Google .

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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Article Copyright 2015 by Ngo Tuong Dan

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Comments and Discussions

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Code for fun -> ^.^

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