Need help with HTML in email notification using EPDM API

Can someone please help me with the correct method of sending HTML formatted email via IEdmUserMgr5.SendMsg. Below is my code. The message is sent but all the formatting (font, color, size, and line spacing) is removed. I wrote this in Visual Basic 2010 Express and it is built in .Net 3.5.

        Dim Vault As IEdmVault5
        Vault = New EdmVault5
        Dim userMgr As IEdmUserMgr5 = Vault
        Dim Admin As IEdmUser5

        Dim BodyText As String = ""
        Dim EmailHeader As String = ""

        Vault.Login("UserName", "UserPassword", "VaultName")

        EmailHeader = "This is the header text."
        BodyText =
                      

Look! Styles and colors


                          

This text is in Verdana and red


                          

This text is in Times and green


                          

This text is 30 pixels high


                       SolidworksSolidworks Pdm enterprise Pdm
                  

        Admin = userMgr.GetUser("Admin")

        Admin.SendMsg(EmailHeader, BodyText)

Thanks

SolidworksSolidworks Pdm enterprise Pdm