Send email in .NET and showing it in sent emails

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.NET4

email

Hi,
I need to be able to send an email using .NET4 (no problem).
But if I send an email using my own email address and credentials I do not see it in my sent emails when I login to my outlook account. I am not at all an expert on emailing, so I have no idea why I cannot see the email I just sent using my credentials. Is it possible to see any mails send from .NET to be shown in my sent emails in outlook without actually opening outlook? And does this work differently for other email clients or providers?

Here is the code I have so far. Nothing out of the ordinairy and it works fine as far as emailing goes.

Dim mail As New System.Net.MailMessage
mail.Subject = "Test"
mail.Body = "This is only a test mail."
mail.To.Add(New MailAddress("myself@myemail.nl", "Naerling"))
mail.Sender = New MailAddress("myself@myemail.nl", "Naerling")
mail.From = New MailAddress("myself@myemail.nl", "Naerling")

Dim smtp As New SmtpClient
smtp.Host = "smtp.myhost.nl"
smtp.UseDefaultCredentials = False
smtp.Credentials = New NetworkCredential("username", "password")

smtp.Send(mail)