|
I am trying to send an SMTP email. It runs fine on my computer and on anothe one at home, both on vista, but when I sent it to a friend who is running windows xp pro it is giving him this error. anyboby knows why and how to solve please?
System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
--- End of inner exception stack trace ---
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at System.Net.DelegatedStream.Read(Byte[] buffer, Int32 offset, Int32 count)
at System.Net.BufferedReadStream.Read(Byte[] buffer, Int32 offset, Int32 count)
at System.Net.Mail.SmtpReplyReaderFactory.ReadLines(SmtpReplyReader caller, Boolean oneLine)
at System.Net.Mail.SmtpReplyReaderFactory.ReadLine(SmtpReplyReader caller)
at System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port)
at System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port)
at System.Net.Mail.SmtpClient.GetConnection()
at System.Net.Mail.SmtpClient.Send(MailMessage message)
--- End of inner exception stack trace ---
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at FireTalkNew.TellFriend.InviteFriend()
at FireTalkNew.TellFriend.btnInvite_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Loaded Assemblies **************
mscorlib
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
FireTalkNew
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Documents%20and%20Settings/Ninu/Local%20Settings/Apps/2.0/17HTMRTE.XCA/NAECG3MY.J21/fire..tion_0000000000000000_0001.0000_323f949fc90232cc/FireTalkNew.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Xml
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Core
Assembly Version: 3.5.0.0
Win32 Version: 3.5.30729.1 built by: SP
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Core/3.5.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Data.Linq
Assembly Version: 3.5.0.0
Win32 Version: 3.5.30729.1
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Data.Linq/3.5.0.0__b77a5c561934e089/System.Data.Linq.dll
----------------------------------------
System.Configuration
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Data
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.Data/2.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
System.Transactions
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.Transactions/2.0.0.0__b77a5c561934e089/System.Transactions.dll
----------------------------------------
System.EnterpriseServices
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.EnterpriseServices/2.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll
----------------------------------------
Anonymously Hosted DynamicMethods Assembly
Assembly Version: 0.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_32/mscorlib/2.0.0.0__b77a5c561934e089/mscorlib.dll
----------------------------------------
System.Xml.Linq
Assembly Version: 3.5.0.0
Win32 Version: 3.5.30729.1 built by: SP
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml.Linq/3.5.0.0__b77a5c561934e089/System.Xml.Linq.dll
----------------------------------------
FD
|
|
|
|
|
milenalukic wrote: anyboby knows why and how to solve please?
What's the code used to send the email?
|
|
|
|
|
private void SendMail()
{
name = txtName.Text;
string body = txtMessage.Text;
MailMessage email = new MailMessage(FromEmail, ToEmail, subject, body);
SmtpClient SmtpMail = new SmtpClient(host, 25);
SmtpMail.Credentials = new NetworkCredential(email, password);
SmtpMail.EnableSsl = false;
SmtpMail.Send(email);
MessageBox.Show("Your message has been sent.", "Message Sent", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
FD
|
|
|
|
|
Ive been developing a app that uses a sql compact database (3.5).
when the app installs the database connection path is designed to be dynamic (ie i dont know if there local drive will be c?)
so ive written the follwing (feel free to advise if there is a better way to do this)
namespace SomeNameSpace.DataAccess.Help.SQLCommands
{
internal class ConnectionCommand
{
internal class GetConnectionCommand()
{
internal const string LiveDatabase()
{
private readonly static string xDataSourceAccess = "Data Source=" + System.Windows.Forms.Application.StartupPath + "\\Data\\database.sdf;Password=password1;Persist Security Info=True";
return xDataSourceAccess;
}
}
}
}
but im concerned about have the password in free text, any example of how i can improve this?
thanks
|
|
|
|
|
You mean you're concerned that it's plaintext?
Well don't worry, it's impossible to actually encrypt it. You can obfuscate it (possibly with encryption, but the key you use for that will have to be stored, unless you encrypt the key in which case you have a new key, and in the end you will always have an unencrypted key) but keep in mind that obfuscating it will tell any hacker who just accidentally comes across it that it is something that you wanted to hide and thus must be something important.
So, my advice would be to use the "hide in plain sight" trick - just put it in the AppSettings somewhere, not encrypted, but in separate parts (not the whole string, but only parts, like "password1" or maybe "pass" and "word1" somewhere else to make it look less like a password)
Doing any encryption on it will only make it stand out, and it will never make it impossible to get the password unless even your app itself can not get the password either (which is pretty lame)
|
|
|
|
|
harold aptroot wrote: So, my advice would be to use the "hide in plain sight" trick
..That's just bad advice.
|
|
|
|
|
Not really, there's nothing better you can do..
If you "encrypt" it, the "encrypted" data will stand out like a fire in the night and coupled with the fact that it's impossible to actually encrypt it the situation would just be worse than if it weren't encrypted (and people would just ignore the data unless they were actively trying to hack it)
|
|
|
|
|
Of course the password would have to be something that doesn't look like a password, but that's a small price to pay..
|
|
|
|
|
Encrypt the password in the settings file - as Harold said you can't stop a REALLY determined hacker, but then you aren't interested in a really determined hacker, your customers are only mildly curious about the data in THEIR database and an encrypted password will do 2 things. Supply a reasonable level of security against the power user and assure your customer that you take security seriously.
Remember the customer is, well your customer and it is his perceptions you need to cater for.
Never underestimate the power of human stupidity
RAH
|
|
|
|
|
Hi i am new to OOP and c# , Im building a program that reads settings form a .cfg file .
I have managed to import the entrire cfg file into an array using string .split
onst string fName = @"Settings.cfg";
string[] lines = File.ReadAllLines(fName);
List<string> fields = new List<string>();
foreach (string s in lines)
{
if (s == "" || s.StartsWith(" ") || s.StartsWith("/"))
{
continue;
}
fields.AddRange(s.Split(new char[] { '=' }));
}
Settings = fields.ToArray();
However this also adds the setting name to the array which is not needed , is there any way to modify the code so only values to the right of the = get added to the array ?
Thanks
|
|
|
|
|
|
you can use Substring method instead of Split method.
find the index of '=' character using IndexOf method and then pass this index + 1 as the parameter of Substring method.
|
|
|
|
|
Two things occur to me.
The first, to allow you to carry on using the same design that you have:
if (s == "" || s.StartsWith(" ") || s.StartsWith("/"))
{
continue;
}
fields.Add(s.Split(new char[] { '=' }[1])); <===== you might have to add a ToString(), or cast to a string
The second would be to use a Dictionary, rather than a List for fields. This would allow you to keep both parts; the setting name as the key and the setting value as the er.... value.
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
|
|
|
|
|
If the value contains an equal sign, then also use the overload of Split that limits the number of strings returned.
|
|
|
|
|
If your cfg file is set out like:
Name=SK
FavWord=Delicious
So you only have one item per line, you should just be able to add the second element of the array:
foreach (string s in lines)
{
if (s == "" || s.StartsWith(" ") || s.StartsWith("/"))
{
continue;
}
string[] parts = s.Split(new char[] { '=' });
fields.Add(parts[1]);
}
Also, it might be worth your while to check out the Dictionary class, which may work out better for you. With a dictionary you can add an item like this:
myDict.Add("Name", "SK");
string m_name = myDict["Name"];
Handy stuff.
EDIT: Wow I need to post quicker. When I first hit 'Reply' this question had no answers!
My current favourite word is: Delicious!
-SK Genius
Game Programming articles start - here[ ^]-
|
|
|
|
|
SK Genius wrote: EDIT: Wow I need to post quicker. When I first hit 'Reply' this question had no answers!
Ditto.
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
|
|
|
|
|
Hi all,
As per my requirement, while displaying date (i.e audit column) in datagrid is coming fine but same column while displaying in excel formate it is displaying as "2008-07-08" unable to get this (2008-07-08 20:24:14) formate i am using the following code
sbrHTML.Append(";.premium { mso-number-format:$\\#\\,\\#\\#0\\.00;} .ogDate {mso-ignore:padding;mso-generic-font-family:auto;mso-font-charset ;mso-number-format:yyyy-MM-dd;mso-background-source:auto;mso-pattern:auto;} ;");
then i am applying style for audit like the following
sbrHTML.Append(";" + (sqlDatareader.IsDBNull(columnIndex) ? "" : sqlDatareader["AUDIT_DATE"].ToString() + ";")); ogDate
For the above stmt i am able to get only this formate "2008-07-08" but i need to include time also.
Could any one help me in mso-number-formate: to get date formate like "2008-07-08 20:24:14"
thanks,
eswar.
|
|
|
|
|
In Excel you can format the cell with a Custom format of yyyy-mm-dd hh:mm:ss or as a Date with International (ISO) locale.
How you'd set that via C# I don't know.
|
|
|
|
|
You can use DateTime.ToString. Pass the format you want, for example yyyy-MM-dd hh:mm:ss. You'd have to hack through the documentation for more format strings information
Between the idea
And the reality
Between the motion
And the act
Falls the Shadow
|
|
|
|
|
Hi,
I have 2 forms and i'm trying to send string from Form1 to Form2,
I don't want to do it by using a constructor.
I want to do it with property.
Some one can help me?
Thanks in advance...
|
|
|
|
|
treuveni wrote: I want to do it with property.
So, create a public property in the Form2 and set it when you create and instance of Form2.
Manas Bhardwaj
Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.
|
|
|
|
|
Can you explain me how to do it?
|
|
|
|
|
|
Hell c# gurus , I am new to C# and im have a general question about c#
I have a datagrid , a text file full of urls and a string . Now the string is actuly the live data output of a program .
Ive already have written the code to import the entire text file into my data grid , What i would like to do is while importing the urls in the foreach loop check the value of s and see if it occurs anywhere in the live output string the value of the string t changes to pending .
Is there anyway to do this ?
const string fName = @"1.txt";
string[] lines = File.ReadAllLines(fName);
List<string> fields = new List<string>();
foreach (string s in lines)
{
int n = dataGridView1.Rows.Add();
dataGridView1.Rows[n].Cells[0].Value = s;
dataGridView1.Rows[n].Cells[1].Value = t;
}
|
|
|
|
|
Where does t come from ? If you create a class to contain s and t, then populate a list of them, you can make that the data source of your grid.
Christian Graus
Driven to the arms of OSX by Vista.
"! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.
I can do things with my brain that I can't even google. I can flex the front part of my brain instantly anytime I want. It can be exhausting and it even causes me vision problems for some reason. - CaptainSeeSharp
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
