Add a byte[] as attachment in a mail

Questions & Answers
1

In the game I capture a screenshot and I’d like to send it via mail.

Is it possible to send it wihtout saving the file to the hard drive?

I tried
mail.Attachments.Add(screenshotFile);

But I need to change the byte to attachment. Is it possible to do that?
(I’m using gmail as smtp).

My code is the following:

static public void GmailSend (string mail, string subject, string body)
	{
		MailMessage mail = new MailMessage();
		
		mail.From = new MailAddress("email@email.here");
		mail.To.Add(mail);
		mail.Subject = subject;
		mail.Body = body;


		**//add a byte[] attachment to the Mail here**


		SmtpClient smtpServer = new SmtpClient(senderSmtp);
		smtpServer.Port = senderPort;
		smtpServer.Credentials = new System.Net.NetworkCredential(senderEmail, senderPassword) as ICredentialsByHost;
		if (sslEnabled){
			smtpServer.EnableSsl = true;
			ServicePointManager.ServerCertificateValidationCallback = 
				delegate(object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) 
			{ return true; };
		}
		smtpServer.Send(mail);
		Debug.Log("success");
		
	}
2

yes, use System.IO and a MemoryStream which has an overload for taking in a byte array.

using System.IO;

static public void GmailSend (string mail, string subject, string body)
{
	MailMessage mail = new MailMessage();

	mail.From = new MailAddress("email@email.here");
	mail.To.Add(mail);
	mail.Subject = subject;
	mail.Body = body;
	using (MemoryStream ms = new MemoryStream(SOMEBYTEARRAYVAR))
	{
		mail.Attachments.Add(new Attachment(ms, "SOMEFILENAMEANDJUNK");
	}
	
	SmtpClient smtpServer = new SmtpClient(senderSmtp);
	smtpServer.Port = senderPort;
	smtpServer.Credentials = new System.Net.NetworkCredential(senderEmail, senderPassword) as ICredentialsByHost;
	if (sslEnabled){
		smtpServer.EnableSsl = true;
		ServicePointManager.ServerCertificateValidationCallback = 
		delegate(object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) 
		{ return true; };
	}
	smtpServer.Send(mail);
	Debug.Log("success");
}