I want to send a (view page) pdf sending by email.but when I trying to add an attachment, I found an error below "Add". for that I can't successfully sending mail with attaching my view pdf.
Here is my code:
(Ordercontroller)
//other code
var message = new MimeMessage();
message.From.Add(new MailboxAddress("Test Project", "pt300#gmail.com"));
message.To.Add(new MailboxAddress("psm", "p689#gmail.com"));
message.Subject = "Hi,this is demo email";
message.Body = new TextPart("plain")
{
Text = "Hello,My First Demo Mail it is.Thanks",
};
//add attach
var aa = new ViewAsPdf("Cart")
{
FileName = "Invoice.pdf", //actually, I don't know why this filename is
// "Invoice". I found this system on a website.
PageOrientation = Rotativa.AspNetCore.Options.Orientation.Portrait,
};
message.Attachments.Add(aa);
//end attach
using (var client = new SmtpClient())
{
client.Connect("smtp.gmail.com", 587, false);
client.Authenticate("pt300#gmail.com", "MyPassword");
client.Send(message);
client.Disconnect(true);
}
//other code
and these controller's view I trying to pdf and send by mail:
(HomeController)
public ActionResult Cart()
{
List<Product> products = HttpContext.Session.Get<List<Product>>("products");
if (products == null)
{
products = new List<Product>();
}
return View(products);
}
in OrderController I found an error.
how I will solve this problem and successfully send my view's pdf by mail.please help.
Attachments is a MimeMessage property that has no such method Add, so here comes the error. To add the attachments you should create a BodyBuilder object before, with this class you will be able to add new attachments (each one of them as byte array), usign Attachments Property and its Add method, but always related to BodyBuilder, not to MimeMessage.
Please, take a look to the answer given here, as I guess is what you are looking for:
.net Core Mailkit send attachement from array
Or check another example here:
https://www.taithienbo.com/send-email-with-attachments-using-mailkit-for-net-core/
In addition, you could get Rotativa PDF as byte array usign this code:
var rotativaAction = new ViewAsPdf("Cart")
{
FileName = "Invoice.pdf", // You can change this file name to set whatever you want
PageOrientation = Rotativa.AspNetCore.Options.Orientation.Portrait,
};
byte[] fileAttachmetByteArray = rotativaAction.BuildFile(ControllerContext);
Once you have generated your PDF as a byte array using Rotativa, guessing you have stored the result in a variable called fileAttachmentByteArray (as stated in the previous code sample), you must simply send this variable (the byte array) to the Add method of the BodyBuilder, as the second parameter (first is the attachement file name, which is completely free to use the name you prefer), and then set Mime Message Body, usign the BodyBuilder you have worked with.
So, to explain the process in steps:
On the first line you create a BodyBuilder variable, and initialize it, using the text you want as body for the email.
Then, you call Add method to add a new attachment, sending to it the file name you wish and your previously created bye array
Finally, you asign the value to the Body property of your Mime Message
And your code should look like this:
var builder = new BodyBuilder { HtmlBody = "yourBodyMessage" }; // Change "yourBodyMessage" to the email body you desire
builder.Attachments.Add("filename", fileAttachmentByteArray); // Once again, you can change this "filename" to set whatever you want
mimeMessage.Body = builder.ToMessageBody(); // Assuming mimeMessage is the same variable you provided in your code
Related
I want to send mails with images in them. The code I've written works fine, but for some reason unknown to me it wont work with Outlook clients.
The test mail I sent was (left: Thunderbird, right: Outlook):
What my code is supposed to do is: It takes the RTF from a RichTextBox and converts it to HTML. This leaves the images embedded in the HTML as base64 strings. I extract all base64 encoded images one by one and put them into a MemoryStream which is accepted by LinkedResource. Since mail clients usually don't accept embedded images I replace the embedded image in the HTML with a content-id. Then I set some properties of LinkedResource and add it to an AlternateView. This alternate view is then added to a System.Net.Mail.MailMessage and the mail is sent.
The corresponding code:
MemoryStream mem = null;
private readonly Regex embeddedImageRegex = new Regex("src=\"data:image/.*?\"");
public MyHTMLMailMessage()
: base()
{
this.SubjectEncoding = Encoding.UTF8;
this.BodyEncoding = Encoding.UTF8;
this.IsBodyHtml = true;
}
public bool Send()
{
// create HTML View with images
AlternateView htmlView = AlternateView.CreateAlternateViewFromString(HTML, System.Text.Encoding.UTF8, MediaTypeNames.Text.Html);
ReplaceEmbeddedImagesWithCID(htmlView);
this.AlternateViews.Add(htmlView);
this.Body = HTML;
SmtpClient client = new SmtpClient(server, port);
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.UseDefaultCredentials = String.IsNullOrEmpty(username);
try
{
client.Send(this);
return true;
}
catch (SmtpException e)
{
return false;
}
finally
{
mem?.Close();
}
}
private void ReplaceEmbeddedImagesWithCID(AlternateView altView)
{
string extension;
int imageIndex = 0;
string contentID = $"image{imageIndex}";
// go through every base64 string, create a content id and LinkedResource for it
while (embeddedImageRegex.IsMatch(HTML))
{
extension = new Regex("image/.*?;").Match(HTML).Value
.Replace("image/", "")
.Replace(";", "");
string base64img = embeddedImageRegex.Match(HTML).Value
.Replace("src=\"", "")
.Replace("\"", "")
.Split(',')[1];
HTML = embeddedImageRegex.Replace(HTML, $"src=\"cid:image{imageIndex}\"", 1);
byte[] byBitmap = Convert.FromBase64String(base64img);
mem = new MemoryStream(byBitmap);
mem.Position = 0;
LinkedResource linkedImage = new LinkedResource(mem, $"image/{extension}");
linkedImage.ContentId = contentID;
altView.LinkedResources.Add(linkedImage);
altView = AlternateView.CreateAlternateViewFromString(HTML, null, MediaTypeNames.Text.Html);
imageIndex++;
}
}
So I went through different solutions but none of them worked.
My steps so far:
I edited some registration keys in HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\x.0\Outlook\Options\Mail or HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\x.0\Common
I left the image as base64 string in the HTML
There were some properties added
linkedImage.TransferEncoding = TransferEncoding.Base64;
linkedImage.ContentType.Name = contentID;
linkedImage.ContentLink = new Uri($"cid:{contentID}");
this.Headers.Add("Content-ID", $"<image{imageIndex}>");
this.Headers.Add("X-Attachment-Id", $"image{imageIndex}");
altView.TransferEncoding = TransferEncoding.QuotedPrintable;
None of this worked for me even although it seemed to help others. Did i overlook something?
Base64 images are blocked by default in Outlook.
You need to attach images to the email and set the PR_ATTACH_CONTENT_ID property on the email (the DASL name is "http://schemas.microsoft.com/mapi/proptag/0x3712001E"). See Embed Images in New Messages using a Macro for more information.
Have you confirmed it is not an image block from Trust Center Settings.
Unblock image downloads for a single message:
Click the InfoBar at the top of the message.
Click Download Pictures.
Unblock image downloads for all messages:
Outlook 2007
On the "Tools" menu, click Trust Center > Automatic Download.
Uncheck the "Don't download pictures automatically in HTML e-mail messages or RSS items" check box.
Outlook 2010 and Up:
On the "File" tab, click Options > Trust Center.
Under Microsoft Outlook Trust Center, click Trust Center Settings.
Uncheck the "Don't download pictures automatically in HTML e-mail messages or RSS items" check box.
Unblock picture downloads for all messages from a particular email address or domain:
In an open message that was sent from a particular email address or domain, right-click on a blocked item.
Do one of the following:
Click Add Sender to Safe Senders List.
Click Add the Domain [#domain] to Safe Senders List.
This seems like a tough one to find a good answer to. I want to create a mail message, add attachments to it, encrypt it using a X509Certificate2 certificate, and then send it. Sounds simple enough, right?! I use asp.net mvc and C#.
This is what I have so far.
string sMTPClient = ConfigurationManager.AppSettings.Get("SMTPClient");
using (var smtpClient = new SmtpClient(sMTPClient))
{
var attachments = MethodToCreateMailAttachments(......);
X509Certificate2 certificate = MethodToGetCertificateBySerialNumber("xxxxxxx");
using (var finalMailmessage = new MailMessage())
{
var encryptedMailMessage = new MailMessage();
var encryptCert = new X509Certificate2(certificate);
encryptedMailMessage.Subject = mailsubject;
encryptedMailMessage.Body = mailBody;
if (attachments.Any())
{
foreach (var item in attachments)
encryptedMailMessage.Attachments.Add(item);
}
byte[] encryptedBodyBytes = Encoding.ASCII.GetBytes(encryptedMailMessage.ToString());
EnvelopedCms Envelope = new EnvelopedCms(new ContentInfo(encryptedBodyBytes));
CmsRecipient Recipient = new CmsRecipient(SubjectIdentifierType.IssuerAndSerialNumber, encryptCert);
Envelope.Encrypt(Recipient);
byte[] EncryptedBytes = Envelope.Encode();
//Attach the encrypted message as an alternate view.
MemoryStream ms = new MemoryStream(EncryptedBytes);
AlternateView av = new AlternateView(ms, "application/pkcs7-mime; smime-type=signed-data;name=smime.p7m");
finalMailmessage.AlternateViews.Add(av);
finalMailmessage.From = new MailAddress(mailFrom);
foreach (var address in mailTo.Split(new[] { ";" }, StringSplitOptions.RemoveEmptyEntries))
{
finalMailmessage.To.Add(address);
}
var smtp = new SmtpClient(sMTPClient);
smtp.Send(finalMailmessage);
finalMailmessage.Dispose();
ErrorLogging.log.Debug("Mailmessage sent");
return "";
}
}
What this does is create two MailMessages, one for the things that need to be encrypted, attachments, body and subject. Then I create the message that will be sent. To this I add the first message as an alternate view. This works so far as to encrypt and send the email, and on the recieving end, I get an email with a padlock icon in Outlook.
I can then open the message in Outlook, by importing the certificate. This works. However, next to the padlock icon, in Outlook, I get the attachment paperclip icon, which suggests that there is something attached to the message. But the message is empty. So nothing gets attached apparently. I suspect the adding of the encrypted MailMessage as an alternate view to the other MailMessage, is where I have gone wrong.
I've tried a lot of other things with no luck, and this is the closest I have come to a working solution. I need some input, so does anyone have any suggestions?
I found a working solution. The problem was this part:
byte[] encryptedBodyBytes = Encoding.ASCII.GetBytes(encryptedMailMessage.ToString());
I had to create a memorystream, which can then be converted into a byte array. I used a tool called "MimeKit", which can be installed as a nuget package.
So, instead I have:
var memStream = new MemoryStream();
var mimeMessage = MimeMessage.CreateFromMailMessage(encryptedMailMessage);
mimeMessage.WriteTo(memStream);
var messageString = Encoding.UTF8.GetString(memoryStream.ToArray());
byte[] encryptedBodyBytes = Encoding.ASCII.GetBytes(messageString);
The rest is the same.
SMTP Provider C# Code:
MailMessage Mail;
Mail.Attachments.Clear();
Byte[] bytes = System.Text.Encoding.ASCII.GetBytes(strICSData);
var ms = new MemoryStream(bytes);
var a = new Attachment(ms, "meeting111.ics", "text/calendar");
a.ContentDisposition.Inline = true;
Mail.Attachments.Add(a);
Here
a.ContentDisposition.Inline
Gets or sets a System.Boolean value that determines the disposition type (Inline or Attachment) for an e-mail attachment.
Above code is working fine and mapping my meeting to outlook calendar as shown below.
Find smtp screen shot after sending mail :
Postmark Provider C# Code:
I am also using postmark provider for mail but i did not find any a.ContentDisposition.Inline = true; functionality.
Please find the below Postmark code :
PostmarkMessage message;
message.Attachments.Clear();
byte[] bytes = System.Text.Encoding.ASCII.GetBytes(strICSData);
var ms = new MemoryStream(bytes);
message.AddAttachment(ms, "meeting111.ics", "text/calendar");
Below line, Adds a file stream with inline support:
message.AddAttachment(ms, "meeting.ics", "text/calendar");
Can anybody provide me solution so that postmark attachment is going to map to outlook calendar.
In order to get better outlook compatibility through our API, you'll need to set the ContentID for the attachment like the following:
attachment.ContentID = "cid:meeting.ics"
So we have to change
message.AddAttachment(ms, "meeting.ics", "text/calendar");
TO
message.AddAttachment(ms, "meeting.ics", "text/calendar","cid:meeting.ics");
What I want to achieve:
Scan mails and attach relevant ones to a "summary"-mail.
My problem:
I can't seem to find any information about how this is done. When using for example Outlook you can simply drag and drop a mail into another message thus attaching it. I looked through the headers and found that it's basically the mail's content and attachments with their content types attached without further encoding. But attaching this data to a MailMessage via Attachment.CreateAttachmentFromString didn't work out either, the file was displayed as a regular file.
My current code:
var mail = new MailMessage(settings.Username, to);
var smtp = new SmtpClient(settings.SMTP, settings.Port);
// ...
// authentication + packing stuff into subject and body
// ...
foreach (var att in attachments)
{
Attachment attachment = Attachment.CreateAttachmentFromString(att.Text, att.Filename);
mail.Attachments.add(attachment);
}
client.Send(mail);
client.Dispose();
mail.Dispose();
My question:
Can C# do this out of the box using some hack or are there libraries that support that?
You would probably want to just use the Attachment constructor that takes a file name:
Attachment attachment = new Attachment(att.Filename);
mail.Attachments.add(attachment);
Of course, this assumes you've saved the attachment already out to your file system somewhere.
You could also just use the attachment's content stream to avoid the overhead of saving each attachment to file first:
Attachment attachment = new Attachment(att.ContentStream, String.Empty);
mail.Attachments.add(attachment);
NOTE: the second argument to that constructor is the "content type", which, if left as an empty string, will be text/plain; charset=us-ascii. Refer to RFC 2045 Section 5.1 for more content types.
Also, see MSDN for more Attachment constructor overloads: https://msdn.microsoft.com/en-us/library/System.Net.Mail.Attachment.Attachment%28v=vs.110%29.aspx
Well, I found a way to somehow does what I needed. This solution is not the perfect answer, but it works almost as intended.
Warning
This solution requires currently Outlook installed as the mail needs to be attached as a .msg file. I want to repeat that this is not the right way to go, this method is way slower than any other solution but it works. I will further investigate soon.
But for now, here's my Extension class:
using System;
using System.Net.Mail;
using System.IO;
using Outlook = Microsoft.Office.Interop.Outlook;
namespace MailAttachment
{
public static class Extensions
{
public static string AttachMail(this MailMessage mail, MailMessage otherMail)
{
string path = Path.GetTempPath(),
tempFilename = Path.Combine(path, Path.GetTempFileName());
Outlook.Application outlook = new Outlook.Application();
Outlook.MailItem outlookMessage;
outlookMessage = outlook.CreateItem(Outlook.OlItemType.olMailItem);
foreach (var recv in message.To)
{
outlookMessage.Recipients.Add(recv.Address);
}
outlookMessage.Subject = mail.Subject;
if (message.IsBodyHtml)
{
outlookMessage.BodyFormat = Outlook.OlBodyFormat.olFormatHTML;
outlookMessage.HTMLBody = message.Body;
}
else
{
outlookMessage.Body = message.Body;
}
outlookMessage.SaveAs(tempFilename);
outlookMessage = null;
outlook = null;
Attachment attachment = new Attachment(tempFilename);
attachment.Name = mail.Subject + ".msg";
otherMail.Attachments.Add(attachment);
return tempFilename;
}
}
}
Additional information
This solution requires you to delete the temporary file after you sent the mail. This might look like this:
MailMessage mail = new MailMessage();
List<MailMessage> mailsToAttach = mails.FindAll(m => m.Date.CompareTo(otherDate) < 0);
List<string> tempFiles = new List<string>();
foreach (var item in mailsToAttach)
{
string tempFile = mail.AttachMail(item);
tempFiles.Add(tempFile);
}
// smtp.Send(mail)
foreach (var item in tempFiles)
{
System.IO.File.Delete(item);
}
I have created an application at work that generates exel files from some database data. After generating the files they are sent automatically to the customers in question. My problem is that it works fine when i run the published application. But some users when they run the application the files are generated perfectly as they are saved on the HDD and i can see them. But when they are attached to the MailMessage object they get corrupted. This is an image of the corrupted files. These files should be Excel files.
This is my code for sending a mail with attached files:
public void SendMailedFilesDK()
{
string[] sentFiles = Directory.GetFiles(sentFilesDK);
if (sentFiles.Count() > 0)
{
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#mail.dk");
msg.To.Add(new MailAddress("operation#mail.dk"));
msg.To.Add(new MailAddress("bl#mail.dk"));
msg.CC.Add("lmy#mail.dk");
msg.CC.Add("ltr#mail.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);
}
}
}
}
Why are the files getting corrupted when others run the application? We are all using office 2010.
You should make sure to set the content type of the attachement to the appropriate value.
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet for xlsx files, or
application/vnd.ms-excel for xls files.
For example, your loop should look something like this.
ContentType xlsxContent = new ContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
foreach (string file in sentFiles)
{
Attachment attachment = new Attachment(file, xlsxContent);
msg.Attachments.Add(attachment);
}
We use this in our Attachment constructor and have no issues attaching Excel and PDF.
Attachment data = new Attachment(sFileName, MediaTypeNames.Application.Octet);
Also check that the users running this have permissions to access the files in whatever location is specified by sentFilesDK.
You might want to specify the mimetype which is part of one of the constructors on Attachment class.
public Attachment(string fileName, ContentType contentType);
You can also read the file in memorystream and pass it as part of the following constructor.
public Attachment(Stream contentStream, string name, string mediaType);