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Fetching attachment from given .eml file and using that attachment to other mail

I am working on code in C#,but not going through on thing that is I have saved some .eml file on my disk now I am parsing each eml file and creating a new mail adding the eml file data to the new mail but I am unable to attach the attachments present in the .eml file to the new mail , can anybody please help?

I am using the follwing code but it shows the error ex = {"The process cannot access the file because it is being used by another process.\r\n":null}
foreach (CDO.IBodyPart attach in msg.Attachments)
{
i++;
string filenm = "C:\\mail_automation\\attachments\\xyz" + i +".eml";
if (File.Exists(filenm))
{
string fn = attach.FileName;
attach.SaveToFile("C:\\mail_automation\\attachments\\xyz" + i + ".eml");
Attachment data = new Attachment(filenm);
mailMessage.Attachments.Add(data);
}
else
{
File.Create(filenm);
string fn = attach.FileName;
attach.SaveToFile("C:\\mail_automation\\attachments\\xyz" + i + ".eml");
Attachment data = new Attachment(filenm);
mailMessage.Attachments.Add(data);
}

You have to extract the attachments and save them to disk first, then fetch it again into the new mail.
Code example here

MailMessage message = new MailMessage();
MemoryStream ms = new MemoryStream(); //store the mail into this ms 'memory stream'
ms.Position = 0;
message.Attachments.Add(new Attachment(ms, attachmentName));

File is used by another process exception C#

I have created an application that generates excel files from information in a database. These files are saved on my HDD in a folder.
After that I attach the files and send them via mail. When I generate another batch of files I delete the old files and then create the new ones.
My problem is when I have generated one batch of files and then send them, and I want to generate another batch I cannot delete the one of the old files, because the mailing method is still holding on to one of the excel files.
Here is my code:
public void SendMailedFilesDKLol() {
string[] sentFiles=Directory.GetFiles(some_Folder);
if(sentFiles.Count()>0) {
System.Net.Mail.SmtpClient client=new System.Net.Mail.SmtpClient("ares");
System.Net.Mail.MailMessage msg=new System.Net.Mail.MailMessage();
msg.From=new MailAddress("system#lol.dk");
msg.To.Add(new MailAddress("lmy#lol.dk"));
msg.Subject="IBM PUDO";
msg.Body=
sentFiles.Count()+" attached file(s) has been sent to the customer(s) in question ";
msg.IsBodyHtml=true;
foreach(string file in sentFiles) {
Attachment attachment=new Attachment(file);
msg.Attachments.Add(attachment);
}
client.Send(msg);
}
}
I have tried to dispose the client element but that didn't help.
Can anyone help me with this?

Both System.Net.Mail.MailMessage & System.Net.Mail.SmtpClient are IDisposable classes. You can try the following,
using (System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient("ares"))
{
using (System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage())
{
msg.From = new MailAddress("system#lol.dk");
msg.To.Add(new MailAddress("lmy#lol.dk"));
msg.Subject = "IBM PUDO";
msg.Body = sentFiles.Count() + " attached file(s) has been sent to the customer(s) in question ";
msg.IsBodyHtml = true;
foreach (string file in sentFiles)
{
Attachment attachment = new Attachment(file);
msg.Attachments.Add(attachment);
}
client.Send(msg);
}
}

It sounds like you may not be closing your file stream when generating the excel files or you have them open in excel when trying to email them.
Please can you show your code for generating the excel files.

You need to dispose the Attachment objects.
Example using LINQ:
public void SendMailedFilesDKLol() {
string[] sentFiles=Directory.GetFiles(some_Folder);
if(sentFiles.Count()>0) {
System.Net.Mail.SmtpClient client=new System.Net.Mail.SmtpClient("ares");
System.Net.Mail.MailMessage msg=new System.Net.Mail.MailMessage();
msg.From=new MailAddress("system#lol.dk");
msg.To.Add(new MailAddress("lmy#lol.dk"));
msg.Subject="IBM PUDO";
msg.Body=
sentFiles.Count()+" attached file(s) has been sent to the customer(s) in question ";
msg.IsBodyHtml=true;
var attachments = sentFiles.Select(f => new Attachment(f)).ToList();
attachments.ForEach(a => msg.Attachments.Add(a));
client.Send(msg);
attachments.ForEach(a => a.Dispose());
}
}

deleting a file in c# after sending email attachment

I have the following code that basically attaches a file to an email message then after all attachments are attached and email is sent, i try to delete all files, however I get a file in use exception. I believe the error comes in this line
Attachment data = new Attachment(file, MediaTypeNames.Application.Octet);
I tried using this code but I get an cannot sent email message
using Attachment data = new Attachment(file, MediaTypeNames.Application.Octet)){
//and the rest of the code in here.
}
foreach (KeyValuePair<string, string> kvp in reports) {
browser.GoTo(kvp.Value);
Thread.Sleep(1000);
System.IO.File.Move(#"C:\Reports\bidata.csv", #"C:\Reports\"+kvp.Key.ToString()+".csv");
string file = #"C:\Reports\" + kvp.Key.ToString() + ".csv";
Attachment data = new Attachment(file, MediaTypeNames.Application.Octet);
// Add time stamp information for the file.
ContentDisposition disposition = data.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(file);
disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
disposition.ReadDate = System.IO.File.GetLastAccessTime(file);
// Add the file attachment to this e-mail message.
mail.Attachments.Add(data);
}
smtpserver.Send(mail);
string[] files = Directory.GetFiles(#"C:\Reports");
foreach (string files1 in files)
{
File.Delete(files1);
}

In order to delete the files first you will have to dispose the attachment and mail objects and then delete the files

Dispose the smtpclient by putting it in a usings or calling dispose directly. That should free the file resource and allow you to nuke it.

Can not attach multiple files in the attachment of email in C#

In my project i need to attach multiple files to send mail and i am doing it as
if (fDialog.ShowDialog() == DialogResult.OK)
{
textBox6.Text += fDialog.FileName.ToString() + ";";
}
Here i am attaching the file in textbox6
I am separating the paths of the different attachment file using ";" and then i separate those paths of the attachment as follows and then send it.
System.Net.Mail.Attachment attachment;
foreach (string m in textBox6.Text.Split(';'))
{
attachment = new System.Net.Mail.Attachment(m);
message.Attachments.Add(attachment);
}
This method don't work for me. But when i send mail with single attachment with the following code it just work fine
System.Net.Mail.Attachment attachment;
attachment = new System.Net.Mail.Attachment(textBox6.Text.ToString());
message.Attachments.Add(attachment);
Someone please help. I have been working this whole day and could not figure it out.

I hope this will solve your problem completely http://archive.msdn.microsoft.com/CSharpGmail

The function should be :
foreach (string m in textBox6.Text.Split(';'))
{
System.Net.Mail.Attachment attachment = new System.Net.Mail.Attachment(m);
message.Attachments.Add(attachment);
}
This will fix your issue.

Try to use file stream instead of link on file:
message.Attachments.Add(new Attachment(attachmentFileStream, fileNameOnly));

Create a Attachmentlistbox then-
if (Attachmentlistbox.Items.Count != 0)
{
for (int i = 0; i < Attachmentlistbox.Items.Count; i++)
mailMessage.Attachments.Add(new Attachment(Attachmentlistbox.Items[i].ToString()));
}

Mail attachments not attaching

I am writing a simple email helper class that will be called by a Windows service. When I test though the email attachment is not sending with the rest of the email.
mailAttachmentFilePath is an ArrayList (just for clarification) and mail represents MailMessage class.
if (mailAttachmentFilePath.Count > 0)
{
foreach (string file in mailAttachmentFilePath)
{
Attachment data = new Attachment(file);
mail.Attachments.Add(data);
data.Dispose();
}
}
I am certain I am missing something but, I don't know what it is...

Do the data.Dispose() AFTER you send the email :D.

Remove the data.Dispose(). The attachments are being added by reference so when you call dispose it's actually releasing the attached file. You also don't really need the if statement. Try this:
foreach (string file in mailAttachmentFilePath)
{
Attachment data = new Attachment(file);
mail.Attachments.Add(data);
}