How to send email form Unity3d and C# using gmail

December 06, 2019

Here are the 7 steps guide to send an email from your unity game using Gmail service. With Gmail mail service you can send email in unity3d.

Steps for Gmail Account:

1. Login at Gmail Account
2. Go to at this location https://myaccount.google.com/security
3. Go to the Less secure app access section and Turn on Allow less secure app access (see image below)

Steps for Unity

4. Create a Unity project (or in your existing project) Make a script with SendEmail name and Copy the Below code.

	using System.Net;
	using System.Net.Mail;
	using System.Net.Security;
	using System.Security.Cryptography.X509Certificates;
	using UnityEngine;

	public class SendEmail : MonoBehaviour
	{
	public string fromEmail = "yourGmailAccountFromWhereYouWantToSendEmail";
	public string toEmail = "WhomYouWantToSendEmail";
	public string subject = "SubjectName";
	public string body = "Body of the email";
	public string password = "YourGmailAccountPassword";
	// Start is called before the first frame update
	void Start()
	{
	EmailSending();
	}

	// Update is called once per frame
	void EmailSending()
	{

	MailMessage mail = new MailMessage();
	mail.From = new MailAddress(fromEmail);
	mail.To.Add(toEmail);
	mail.Subject = subject;
	mail.Body = body;
	// you can use others too.
	SmtpClient smtpServer = new SmtpClient("smtp.gmail.com",587);
	//smtpServer.Port = 587;
	smtpServer.Credentials = new System.Net.NetworkCredential(fromEmail, password) as ICredentialsByHost;
	smtpServer.EnableSsl = true;
	ServicePointManager.ServerCertificateValidationCallback =
	delegate (object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
	{ return true; };
	smtpServer.Send(mail);

	}

	}

view raw EmailSenderUnityCSharp.cs hosted with ❤ by GitHub

5. Attach the script with any gameobject in your hierarchy.
6. Provide the credential in the inspector in the script (like your account and password and receiver account, message body, etc)
7. Run the game, it will send the email to the desired address in the start function

Note: If your system is behind a proxy then, email may not be sent and throw an exception.

Learn More: How does unity calls it MonoBehaviour events like the update?

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