private void btnLogin_Click(object sender, EventArgs e)
{
GetMails client = new GetMails();
client.Authenticate(txtUsername.Text, txtPassword.Text);
ReadEmailForm letsSeeMyEmails = new ReadEmailForm(client);
letsSeeMyEmails.Show();
Hide();
}
public ReadEmailForm(GetMails client)
{
InitializeComponent();
this.client = client;
}