Target machine refusing smtp email connection

RoseVanKeuren · March 10th, 2009, 04:16 PM

I am having difficulty getting the email demo to work.
Any insight into how to get around the issue would be very welcome. I was going to just continue with the book, but then the following chapter builds on the email issue.

When I try to run the demo, I get the following error:
No connection could be made because the target machine actively refused it

My ISP is Verizon, and on their website they say the following:
"The SMTP setting for outgoing mail is outgoing.verizon.net."

Here is my code:
web.config:
<system.net>
<mailSettings>
<smtpdeliveryMethod="Network"from="me@verizon.net">
<networkhost="outgoing.verizon.net"userName="me"password="mypass" />
</smtp>
</mailSettings>
</system.net>

Email.aspx.cs:
publicpartialclassDemos_Email : System.Web.UI.Page
{
protectedvoid Page_Load(object sender, EventArgs e)
{
MailMessage myMessage = newMailMessage();
myMessage.Subject = "Test Message";
myMessage.Body = "Hello world, from Planet Wrox";
myMessage.From = newMailAddress("[email protected]");
myMessage.To.Add(newMailAddress("[email protected]"));
SmtpClient mySmtpClient = newSmtpClient();
mySmtpClient.EnableSsl = true;
mySmtpClient.Send(myMessage);
}
}

Thank you for any help you can provide.

Imar · March 10th, 2009, 06:04 PM

Hi there,

I think you need to talk to Verizon. Maybe they require SSL, maybe they don't require "Me" as the name, but "me @domainname.com", maybe your IP address / connection is not allowed to use that mail server and so on. Difficult to say from here, but they should be able to help you out. Maybe they have code examples or a FAQ on their site?

Imar

RoseVanKeuren · March 10th, 2009, 07:06 PM

Thanks.

I tried changing "me" to [email protected] and was rewarded with this error message:
Server does not support secure connections

I'll try to get in touch with Verizon tomorrow and see if they're any help.

RoseVanKeuren · March 11th, 2009, 10:39 AM

Thanks for your input - I have resolved my issue.

I called Verizon and determined that they don't require SSL.

When I changed the code mySmtpClient.EnableSsl = true;
to mySmtpClient.EnableSsl = false;
it worked.

FYI - Verizon customers - settings are as follows:
web.config

Code:

<system.net>
<mailSettings>
<smtpdeliveryMethod="Network"from="me@verizon.net">
<networkhost="outgoing.verizon.net"userName="me"password="mypass" />
</smtp>
</mailSettings>
</system.net>

Email.aspx.cs:

Code:

publicpartialclassDemos_Email : System.Web.UI.Page
{
  protectedvoid Page_Load(object sender, EventArgs e)
  {
    MailMessage myMessage = newMailMessage();
    myMessage.Subject = "Test Message";
    myMessage.Body = "Hello world, from Planet Wrox";
    myMessage.From = newMailAddress("[email protected]");
    myMessage.To.Add(newMailAddress("[email protected]"));
    SmtpClient mySmtpClient = newSmtpClient();
    mySmtpClient.EnableSsl = false;
    mySmtpClient.Send(myMessage);
   }
}

Imar · March 11th, 2009, 04:16 PM

Great. Glad it's working now....

Imar