SmtpMail and Mobile Asp.Net..?

Does anyone know of any issues with sending mail from a Mobile Asp.Net WebForm?

I've got a page setup that takes a bunch of user field input and then slaps it in a mail and sends it; the problem is I keep getting a could not access Message error... Never seen this error before and I'm not sure what the deal is. I've tried a few web/mail servers and nothing changes....

Thoughts? Ideas? You moron?

PHP Code:

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            MailMessage msg = new MailMessage();
            msg.Body = sb.ToString();
            msg.To = System.Configuration.ConfigurationSettings.AppSettings["send_memo_to"];
            msg.From = "[MAI][email protected]";
            msg.Subject = "Billing Memo" + DateTime.Now.ToLongTimeString();

            SmtpMail.SmtpServer = System.Configuration.ConfigurationSettings.AppSettings["mail_server"];
            try
            {
                SmtpMail.Send(msg);
                Response.Write("Message Sent.");
            }
            catch(Exception ex)
            {
                Response.Write(ex.Message);
            } 


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Code:

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<appSettings>
        <add key="mail_server" value="blanked.for.security.on.vbforum"/>
        <add key="send_memo_to" value="[email protected];[email protected];"/>
</appSettings>

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