Error C# mail client

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I try to create a email client using C# (Windows Form application) this is my code
there is an error occurred when create server part

C#

Server = new TcpClient(POPServ.Text,110); // error comes here "No such host is known"
NetStrm = Server.GetStream();
RdStrm= new StreamReader(Server.GetStream());

POP server - pop.gmail.com
user name pass are correct
pop port - 110
i allso use 995 but same thing happen
what is the reson
Thank in advance

Posted 14-Mar-13 8:28am

Manoj Chamikara

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Comments

Richard C Bishop 14-Mar-13 14:34pm

I think that describes it, the host you are using does not exist.

[no name] 14-Mar-13 14:35pm

The probable reason is that you are trying to use a TcpClient to connect to a mail server.

Manoj Chamikara 14-Mar-13 14:42pm

ThePhantomUpvoter Thank You
How Should i correct it

[no name] 14-Mar-13 14:48pm

You would use an SmtpClient. For an example see http://stackoverflow.com/a/32336/1861918

Manoj Chamikara 14-Mar-13 15:01pm

Thank You Now i understand what's happen

Sergey Alexandrovich Kryukov 14-Mar-13 15:17pm

Are you talking about exception "No such host is known", not "error"? Isn't it obvious? You don't have such host.
—SA

Manoj Chamikara 14-Mar-13 15:38pm

This Error Comes when email send
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at

How to secure connection?

2 solutions

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-03-14T09:19:00

Solution 2

Please see my comment to the question. Just run it under the debugger and check up the value of POPServ.Text. Fix the host name/address and make sure your server side is actually running.

—SA

Posted 14-Mar-13 9:19am

Sergey Alexandrovich Kryukov

Bernhard Hiller · Answer 2 · 2013-03-15T01:30:00

Solution 3

You have to add your credentials (SmtpClient.Credentials), and set the EnableSsl property.

Posted 15-Mar-13 1:30am

Bernhard Hiller