Hi Prasadd,

1) First the email syntax validation.

I have written an article on this at the following link. In short, you can use regular expressions:
Email Validation

2) Send email from a desktop application.

You can use the SmtpMail class just as you would in an ASP.NET application. You just need to add a reference to the System.Web.dll library. If you are using Visual Studio .NET, go to the Solution Explorer and right click 'References' in your project. Choose to Add Reference. Then browse the .NET tab for System.Web.dll and add it. Then the following should work.


Cheers,
Steve

Oops. The last line should read

hi, Prasadd

Use RegularExpression.RegEx class
here is example for Email validation that i have made try it.

public static bool ValidEmail(string validatingstring, string displaymessage)
{
if (!Regex.Match(validatingstring, @"^[a-zA-Z][a-zA-Z0-9_-]+@[a-zA-Z]+[.]{1}[a-
zA-Z]+$").Success)
{
//Email was incorrect
ErrorMessage(displaymessage);
return false;
}
else
{
return true;
}
}

Regards,
Chirag Shah

I'm not satisfied with your example...
To validate Email id in c#

using System.Text.RegularExpressions;

Coding:

if (!Regex.Match(textBox1.Text, @"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*").Success)
MessageBox.Show(textBox1.Text+" is Invalid Email");
else
MessageBox.Show(textBox1.Text+" is valid Email");

I'm not satisfied with your example...
To validate Email id in c#

using System.Text.RegularExpressions;

Coding:

if (Regex.Match(textBox1.Text, @"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*").Success)
MessageBox.Show("valid Email");
else
MessageBox.Show("Invalid Email");

Chakrapani,
Hyderabad

string strRegex = @"^([a-zA-Z0-9\.]+)@(|yahoo|gmail|).(|com|in|edu|info|gov|int|mil|net|org|biz|name|museum|coop|aero|pro|tv|)$";

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