@Daniel,

I think you are wrong: ConnectSSL method is awaited – thus execution “returns” to UI thread.

Use try..catch blocks when necessary:

using (Imap client = new Imap ())
{
    try
    {
        await client.ConnectSSL("imap.incorrect.com");
    }
    catch(Exception ex)
    {
        Log(ex.Message);
        return;
    }
    //...
    client.Close();
}

As connection is created asynchronously and .NET gives up after 20 seconds, you’ll get “A connection attempt failed…” exception after this time.

For Windows 8 version when I enter wrong server address for Connect(SSL) async methods they just break without exception, without status, no info, nothing… they just go back to UI thread.

@Manoj,

No, you can’t send email without the services of a SMTP server.
You can however send email using recipient’s DNS server.

Thx
Manoj

@Carlos

Does your application have enough permissions to create connection to the server (SocketPermission)?

I started tried with SSL and used the port that use my mail provider “GoDaddy”. I had connection problems, so i decided to use the connection without the SSL. I have the same way connection of the samples and i still have problems, i know it because a have a log of the issues. The ports are open in the server.

What else can i do?

For a windows development box I can recommend hMailServer.
It’s easy to use and supports Smtp, Pop3, Imap, SSL and DKIM.

Thanks

Robert Ng