Sending email in .NET through Gmail

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Sending email in .NET through Gmail

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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);
}

```

Additionally go to the [*Google Account > Security*](https://myaccount.google.com/security) page and look at the *Signing in to Google > 2-Step Verification* setting.

- 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*](https://myaccount.google.com/apppasswords), 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*](https://myaccount.google.com/lesssecureapps), which is not recommended! So better enable the 2-Step verification.