I'd like to send email by asp.net . I use this code and it is work fine.
mail.From = new MailAddress("mail#gmail.com", "sender", System.Text.Encoding.UTF8);
string to = Session["Umail"].ToString();
mail.To.Add(to);
mail.IsBodyHtml = true;
mail.SubjectEncoding = Encoding.UTF8;
mail.BodyEncoding = Encoding.GetEncoding("utf-8");
mail.Subject = "subject";
mail.Body = "body" ;
SmtpClient smtp = new SmtpClient("Smtp.gmail.Com", 587);
smtp.UseDefaultCredentials = false;
smtp.EnableSsl = true;
smtp.Credentials = new NetworkCredential("mail#gmail.com", "pass"); smtp.Send(mail);
But I'd like a custom and beautiful mail. Like emails that send from facebook, google team and etc. I know that can use html tag in mail.Body but is it good way? What is the best way ?
This is ready to use code snippet which I use for sending email which contains both text content and the content based on a html template:
// first we create a plain text version and set it to the AlternateView
// then we create the HTML version
MailMessage msg = new MailMessage();
msg.From = new MailAddress("from#email", "From Name");
msg.Subject = "Subject";
msg.To.Add("to#email");
msg.BodyEncoding = Encoding.UTF8;
String plainBody = "Body of plain email";
//first we create the text version
AlternateView plainView = AlternateView.CreateAlternateViewFromString(plainBody, Encoding.UTF8, "text/plain");
msg.AlternateViews.Add(plainView);
//now create the HTML version
MailDefinition message = new MailDefinition();
message.BodyFileName = "~/MailTemplates/template1.htm";
message.IsBodyHtml = true;
message.From = "from#email";
message.Subject = "Subject";
//Build replacement collection to replace fields in template1.htm file
ListDictionary replacements = new ListDictionary();
replacements.Add("<%USERNAME%>", "ToUsername");//example of dynamic content for Username
//now create mail message using the mail definition object
//the CreateMailMessage object takes a source control object as the last parameter,
//if the object you are working with is webcontrol then you can just pass "this",
//otherwise create a dummy control as below.
MailMessage msgHtml = message.CreateMailMessage("to#email", replacements, new LiteralControl());
AlternateView htmlView = AlternateView.CreateAlternateViewFromString(msgHtml.Body, Encoding.UTF8, "text/html");
//example of a linked image
LinkedResource imgRes = new LinkedResource(Server.MapPath("~/MailTemplates/images/imgA.jpg"), System.Net.Mime.MediaTypeNames.Image.Jpeg);
imgRes.ContentId = "imgA";
imgRes.ContentType.Name = "imgA.jpg";
imgRes.TransferEncoding = System.Net.Mime.TransferEncoding.Base64;
htmlView.LinkedResources.Add(imgRes);
msg.AlternateViews.Add(htmlView);
//sending prepared email
SmtpClient smtp = new SmtpClient();//It reads the SMPT params from Web.config
smtp.Send(msg);
and these are key parts of the html template:
<p>Username: <%USERNAME%></p>
<img src="cid:imgA"/>
I'd like a custom and beautiful mail.
I know that can use html tag in mail.Body but is it good way? What is
the best way ?
I don't know exactly what is that supposed to mean, but generally, there are two ways to do it. (If we talking about images or sources in email etc..)
You can use LinkedResource class of .NET Framework.
Represents an embedded external resource in an email attachment, such
as an image in an HTML attachment.
Alternatively, and more simply in my opinion, if you want to use some images in your email, put the image in a public location then just reference that location in the HTML of the email.
Related
This question already has answers here:
Send inline image in email
(13 answers)
Closed 5 years ago.
I'm using the following code (C#) to embed an image into an html email:
Bitmap image = new Bitmap();
// set something to image
MemoryStream ms = new MemoryStream();
image.Save(ms, ImageFormat.Jpeg);
ContentType contentType = new ContentType(MediaTypeNames.Image.Jpeg);
ms.Seek(0, SeekOrigin.Begin);
Attachment attachment = new Attachment(ms, contentType);
attachment.ContentId = "image#email";
MailMessage mail = new MailMessage();
mail.From = new MailAddress("...");
mail.To.Add("...");
mail.Subject = "...";
mail.Body = body; // view below
mail.IsBodyHtml = true;
mail.Attachments.Add(attachment);
smtpClient.Send(mail);
ms.Close();
here the relevant part of the html body:
<img align='center' alt='' src='cid:image#email' width='100' style='padding-bottom: 0; display: inline !important; vertical-align: bottom;'>";
Viewing the email on the gmail website it looks correct: i.e. the image is embedded into the html body.
Instead, using Thunderbird the image is received as an attachment, but not recognized as jpg. The attachment is named "Part 1.2". If I double click on it the image is opened with the default image viewer installed on the computer.
What I need to add in order to correctly send embedded images in a way that is compatible with the most common email readers?
UPDATE
To name the attached image is enough to add the following:
attachment.Name = "name.jpg";
Still Thunderbird refuses to show it inside the html.
As Scarnet pointed out, this is the right way to place an embedded image into an html email:
AlternateView view = AlternateView.CreateAlternateViewFromString(body, null, MediaTypeNames.Text.Html);
LinkedResource inline = new LinkedResource(filename, MediaTypeNames.Image.Jpeg);
inline.ContentId = "image#email";
view.LinkedResources.Add(inline);
MailMessage mail = new MailMessage();
mail.From = new MailAddress(username);
mail.To.Add(address);
mail.Subject = subject;
mail.IsBodyHtml = true;
mail.AlternateViews.Add(view);
await smtpClient.SendMailAsync(mail);
I've found this link on how to using Razor Engine for email templates in asp.net and it worked great. But I've tried to have a logo in the email template with an image.
Something like this:
EmailTemplate.cshtml (this by the way is a strongly-type view)
<html>
<body>
<img src="logo.jpg" />
</body>
</html>
and when I try to submit it on email, it seems that the image path was not read, it only rendered an X in the content.
I'm thinking to pass the image path as part of the Model but it seems odd that way. Is there any way to achieve this?
Any help would be much appreciated. Thanks
To see image everywhere you can use these options:
Absolute Url
You can simply use full absolute path of image for example "http://example.com/images/logo.png"
IMO It is the most simple option and recommended for your problem.
Attachment
As mentioned by Mason in comments You can attach image to mail and then put image tag and useContentId of attachment:
//(Thanks to Mason for comment and Thanks to Bartosz Kosarzyck for sample code)
string subject = "Subject";
string body = #"<img src=""$CONTENTID$""/> <br/> Some Content";
MailMessage mail = new MailMessage();
mail.From = new MailAddress("from#example.com");
mail.To.Add(new MailAddress("to#example.com"));
mail.Subject = subject;
mail.Body = body;
mail.Priority = MailPriority.Normal;
string contentID = Guid.NewGuid().ToString().Replace("-", "");
body = body.Replace("$CONTENTID$", "cid:" + contentID);
AlternateView htmlView = AlternateView.CreateAlternateViewFromString(body, null, "text/html");
//path of image or stream
LinkedResource imagelink = new LinkedResource(#"C:\Users\R.Aghaei\Desktop\outlook.png", "image/png");
imagelink.ContentId = contentID;
imagelink.TransferEncoding = System.Net.Mime.TransferEncoding.Base64;
htmlView.LinkedResources.Add(imagelink);
mail.AlternateViews.Add(htmlView);
SmtpClient client = new SmtpClient();
client.Host = "mail.example.com";
client.Credentials = new NetworkCredential("from#example.com", "password");
client.Send(mail);
Data Uri
you can use data uri (data:image/png;base64,....).
Not Recommended because of weak support in most of mail clients, I tested it with Outlook.com(web) and OutlookWebAccess(web) and Office Outlook(Windows) and Outlook(windows 8.1) and unfortunately it worked only on OutlookWebAccess(web).
I am using C#.Net to send out a HTML email which contains embedded images. These emails work fine in Firefox and chrome but the images do not show up in Internet Explorer (IE). I know that the IE settings are not causing the problem since embedded images sent using Blat work just fine. Am I missing some option such as character set which is causing this problem? My code is as follows
MailMessage msg = new MailMessage();
MailAddress from = new MailAddress("Myemail#MyDomain", "My Name");
msg.To.Add("Myemail#MyDomain");
msg.From = from;
msg.Subject = "My subjecct line";
AlternateView htmlView = AlternateView.CreateAlternateViewFromString("This is a sample JPG embedded image<br><img src=\"cid:image1.jpg\">", null, "text/html");
LinkedResource EmbeddedObjects1 = new LinkedResource("PathToImage\\image1.jpg");
EmbeddedObjects1.ContentId = "image1.jpg";
htmlView.LinkedResources.Add(EmbeddedObjects1);
msg.AlternateViews.Add(htmlView);
SmtpClient smtpclient = new SmtpClient("mailhost.domain.com", PortNumber);
smtpclient.Send(msg);
Maybe it helps if you create the LinkedResource with a ContentType combined with Coding Gorilla's idea of a guid as the content-id:
Guid contentId = Guid.NewGuid().ToString();
AlternateView htmlView = AlternateView.CreateAlternateViewFromString(
"This is a sample JPG embedded image<br><img src=\"cid:" + contentId + "\">",
null, "text/html");
ContentType ct = new ContentType(MediaTypeNames.Image.Jpeg);
LinkedResource EmbeddedObjects1 = new LinkedResource("PathToImage\\image1.jpg", ct);
EmbeddedObjects1.ContentId = contentId;
htmlView.LinkedResources.Add(EmbeddedObjects1);
Try adding the following.
msg.IsBodyHtml = true;
Additionally, I usually setup my AlternateView like this.
AlternateView htmlView = AlternateView.CreateAlternateViewFromString(html, new ContentType("text/html"));
Embedded images work by creating dataUri schemes. IE < 8 doesn't support those.
I want to send multi-part MIME messages with an HTML component plus a plain text component for people whose email clients can't handle HTML. The System.Net.Mail.MailMessage class doesn't appear to support this. How do you do it?
D'oh, this is really simple... but I'll leave the answer here for anyone who, like me, came looking on SO for the answer before Googling... :)
Credit to this article.
Use AlternateViews, like so:
//create the mail message
var mail = new MailMessage();
//set the addresses
mail.From = new MailAddress("me#mycompany.com");
mail.To.Add("you#yourcompany.com");
//set the content
mail.Subject = "This is an email";
//first we create the Plain Text part
var plainView = AlternateView.CreateAlternateViewFromString("This is my plain text content, viewable by those clients that don't support html", null, "text/plain");
//then we create the Html part
var htmlView = AlternateView.CreateAlternateViewFromString("<b>this is bold text, and viewable by those mail clients that support html</b>", null, "text/html");
mail.AlternateViews.Add(plainView);
mail.AlternateViews.Add(htmlView);
//send the message
var smtp = new SmtpClient("127.0.0.1"); //specify the mail server address
smtp.Send(mail);
Basic question here: I'm sending emails using the default SmtpClient of the .NET framework (3.5). The bodytype is HTML (IsBodyHtml = true) In the body I've added a url with two parameters in the querystring like so:
http://server.com/page.aspx?var1=foo&var2=bar
This get's encoded to:
http://server.com/page.aspx?var1=foo%26var2=bar (the ampersand is encoded as percent-26)
When doing a simple Request["var2"] I get 'null'.
What should I do to properly encode the ampersand in the mail message?
This works fine for me:
var client = new SmtpClient();
client.Host = "smtp.somehost.com";
var message = new MailMessage();
message.From = new MailAddress("from#example.com");
message.To.Add(new MailAddress("to#example.com"));
message.IsBodyHtml = true;
message.Subject = "test";
string url = HttpUtility.HtmlEncode("http://server.com/page.aspx?var1=foo&var2=bar");
message.Body = "<html><body>Test</body></html>";
client.Send(message);
Use the UrlEncode method. This will do all the encoding of your input string for you.