Can I set up HTML/Email Templates with ASP.NET?

I'm working on a site that will send out a significant number of emails. I want to set up both header and footer text, or maybe even templates to allow the users to easily edit these emails if they need to.

If I embed the HTML inside C# string literals, it's ugly and they would have to worry about escaping. Including flat files for the header and footer might work, but something about it just doesn't feel right.

What would be ideal what be to use a .ASPX page as a template somehow, then just tell my code to serve that page, and use the HTML returned for the email.

Is there a nice and easy way to do this? Is there a better way to go about solving this problem?

Updated: I added an answer that enables you to use a standard .aspx page as the email template. Just replace all the variables like you normally would, use databinding, etc. Then just capture the output of the page, and voila! You have your HTML email!

UPDATED WITH CAVEAT!!!: I was using the MailDefinition class on some aspx pages just fine, but when trying to use this class during a server process that was running, it failed. I believe it was because the MailDefinition.CreateMailMessage() method requires a valid control to reference, even though it doesn't always do something. Because of this, I would recommend my approach using an aspx page, or Mun's approach using an ascx page, which seems a little better.

There's a ton of answers already here, but I stumbled upon a great article about how to use Razor with email templating. Razor was pushed with ASP.NET MVC 3, but MVC is not required to use Razor. This is pretty slick processing of doing email templates

As the article identifies, "The best thing of Razor is that unlike its predecessor(webforms) it is not tied with the web environment, we can easily host it outside the web and use it as template engine for various purpose. "

Generating HTML emails with RazorEngine - Part 01 - Introduction

Leveraging Razor Templates Outside of ASP.NET: They’re Not Just for HTML Anymore!

Smarter email templates in ASP.NET with RazorEngine

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Templating using new RazorEngine API

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Sending Emails In ASP.NET With Email Templates, Set a name for the HTML file. In my case, I have named it as Welcome_EmailTemplate.html (But I will be using Confirm_Account_Registration . we gave the client a WYSIWYG editor to modify these templates via a admin web form. whenever updates were made, we reset asp.net cache. and then we had a seperate table for email logs – where every email to be sent was logged. this table had fields called emailType, emailSent and numberOfTries.

You might also want to try loading a control, and then rendering it to a string and setting that as the HTML Body:

// Declare stringbuilder to render control to
StringBuilder sb = new StringBuilder();

// Load the control
UserControl ctrl = (UserControl) LoadControl("~/Controls/UserControl.ascx");

// Do stuff with ctrl here

// Render the control into the stringbuilder
StringWriter sw = new StringWriter(sb);
Html32TextWriter htw = new Html32TextWriter(sw);
ctrl.RenderControl(htw);

// Get full body text
string body = sb.ToString();

You could then construct your email as usual:

MailMessage message = new MailMessage();
message.From = new MailAddress("from@email.com", "from name");
message.Subject = "Email Subject";
message.Body = body;
message.BodyEncoding = Encoding.ASCII;
message.IsBodyHtml = true;

SmtpClient smtp = new SmtpClient("server");
smtp.Send(message);

You user control could contain other controls, such as a header and footer, and also take advantage of functionality such as data binding.

Send Email Using Templates In ASP.NET Core, Net. HTML Template is nothing but an HTML File whose contents will The SMTP email settings are read from the appSettings section of the� What are Email Templates? How to send emails from an ASP.NET WebForm? Step By Step Implementation of Sending Email By Email Templates in ASP.NET WebFom. What are Email Templates? Email templates is a predefined body of text of email messages. Sending email is just about filling in the blank fields. Example

You could try the MailDefinition class

Send Email using HTML Templates in ASP.Net with C# and VB.Net, Lastly for the project setup we will want to add a reference to the Templates project in our Api project. View Model Creation. The full code for these� Below is the sample code for Send E-Mail Method in ASP.Net C#/VB. This methods gets the parameter Receiver MailID, Subject and Body text. Create a folder with name "attachments" in the project to save the uploaded file.

If you want to pass parameters like user names, product names, ... etc. you can use open source template engine NVelocity to produce your final email / HTML's.

An example of NVelocity template (MailTemplate.vm) :

A sample email template by <b>$name</b>.
<br />

Foreach example :
<br />    
#foreach ($item in $itemList)

[Date: $item.Date] Name: $item.Name, Value: $itemValue.Value
<br /><br />

#end

Generating mail body by MailTemplate.vm in your application :

VelocityContext context = new VelocityContext();
context.Put("name", "ScarletGarden");
context.Put("itemList", itemList);

StringWriter writer = new StringWriter();

Velocity.MergeTemplate("MailTemplate.vm", context, writer);

string mailBody = writer.GetStringBuilder().ToString();

The result mail body is :

A sample email template by ScarletGarden.

Foreach example :

[Date: 12.02.2009] Name: Item 1, Value: 09

[Date: 21.02.2009] Name: Item 4, Value: 52

[Date: 01.03.2009] Name: Item 2, Value: 21

[Date: 23.03.2009] Name: Item 6, Value: 24

For editing the templates, maybe you can use FCKEditor and save your templates to files.

How to Create Email Templates with ASP.NET Core 2.2, NET Standard Class Library and reference ASP. What I would like to do is create an HTML Email Template library, and let developers focus on the content NET Class Library, so that the sending of the emails happens right next to all my other business logic. NET Core setting such as Class Libraries. In this article, we will discuss how to send emails using a Template file in ASP.NET Core Application. Sending email using Template file is similar to sending emails using plain text. The only difference is that now, the source of the content is a text file rather than direct content for email.

Mail.dll email component includes email template engine:

Here's the syntax overview:

<html>
<body>
Hi {FirstName} {LastName},

Here are your orders: 
{foreach Orders}
    Order '{Name}' sent to <strong>{Street}</strong>. 
{end}

</body>
</html>

And the code that loads the template, fills data from c# object and sends an email:

Mail.Html(Template
              .FromFile("template.txt")
              .DataFrom(_contact)
              .Render())
    .Text("This is text version of the message.")
    .From(new MailBox("alice@mail.com", "Alice"))
    .To(new MailBox("bob@mail.com", "Bob"))
    .Subject("Your order")
    .UsingNewSmtp()
    .WithCredentials("alice@mail.com", "password")
    .Server("mail.com")
    .WithSSL()
    .Send();

You can get more info on email template engine blog post.

Or just download Mail.dll email component and give it a try.

Please note that this is a commercial product I've created.

Walkthrough: Creating an HTML Email Template with Razor and , That is a facility that a form provides. Not an Email template! What you need to do is to create a simple form that has some basic fields like I am� In this article I’m going to explain how to send email using HTML template or HTML formatted email in ASP.NET. while working with send email from ASP.NET application I have found the solution to send email with HTML template. Please follow the steps I have given below. First we have to create HTML page. Add NewItem ->HTML page. In above code you’ll be noticed that Yellow color, here I have

How do I create a Email template in ASP.NET, Next, on the Email Setup Center area, you will find the Outgoing Since it is a HTML email so you can put any HTML Email Template to the� Locate and open the .html file of the template that you would like to use for your ASP.NET page. Import needed CSS and Image files. Import the needed CSS and image files for the template into your ASP.NET site. Copy template code into Default.aspx page. Copy the header info from the .html template into the header for the Default.aspx page.

How to send HTML Emails with Attachments in ASP.NET MVC, In this Video you can learn how to create html template to send an Email using Gmail Duration: 7:47 Posted: Sep 16, 2016 The HTML Template of the Email will be built by generating an HTML containing some placeholders which will be replaced with the actual content. Advantage of creating templates instead of building HTML using String Builder class or String concatenation in code is that one can easily change the HTML of the template without changing the code.

Sending Email body with HTML Template in C#, For this we shall take help from one of the most useful SMTP libraries available for ASP.NET Core. Setting up the Context - What is an SMTP: SMTP stands for� Hi, Currently in my application, I am sending mails to selected users (from code there is no workflow is attached). But there is a new requirement to use an email template while sending this mail.

Comments
  • Another solution would be to use AlphaMail to create and send your emails using C# and the Comlang template language.
  • @JohnBubriski: I work around control problem you mentioned in "UPDATED WITH CAVEAT" using new System.Web.UI.Control() as in: mailDefinition.CreateMailMessage("somebody@fake.com", iDictionaryReplacements, new System.Web.UI.Control()).
  • Yeah, I have done that too, but given the advent of Razor, this is becoming less of a good idea.
  • +1 but be careful if users are providing the templates, as they can run C# code from the template, giving them alot more power in your system than you would probably want.
  • What do you think about Security. Using this templating engine makes it possible to maybe format the whole file system. I like the engine, but that forces me to have a look at other engines.
  • I somehow missed this answer the first time around... nice one. Similar to my solution, but with an ascx instead of an aspx. I still think aspx would be better, since it would offer a complete page, instead of a control, but that's just what I think.
  • Yep, you could use either solution... They work in the same way. One benefit of this approach is consistency. For example, you could show a user an order summary and include exactly the same thing in the confirmation email by reusing the same control.
  • Minor point but you're missing a line to declare a StringBuilder in the first code block.
  • The example doesn't explain where the code resides in, is it a page?, because LoadControl is a page/control method.
  • @Mun, You load the usercontrol into a variable called ctrl, and you never reference it again in your code. How is this supposed to work?
  • I just want to point out that this is good for basic emails, but not anything complex. The MailDefinition class does not support databinding. The only thing it really does is offer string replacements. Although, its also built into the Membership Account Creation Wizard.
  • The MailDefinition class must get a Control to render templated content.. Not so good.
  • I had never thought of this before, but after trying lots of other methods I found this worked great in combination with adding the IXmlSerializable interface to my classes. In just a few lines I can have my class turn in to an email.