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Blazor client side send an email

I included a contact form in a razor page, so an user can fill it with his email, a subject and a body. When he submit it, the email is send to my email adress.
My code looks like this example
But when i submit my form, i had this error
Operation is not supported on this platform.
It's not supported because i'm running it on the browser (client side).
I would like to know if someone as a turnaround for this case, without using a smtp server (since the user can access the credentials of the server) or
test#example.com
Thank you.
Regards, Samih.

This is not possible, because browsers have security restrictions which forbids sending E-Mails. This restrictions doesn't come from Blazor or ASP.NET Core. It won't work with JavaScript either. Or at least not with questionable hacks.
I won't recommend to use projects like smtp.js which are trying to work around those limitations: They're doing the only suiteable method by using a server-side API. But the problem here is, that you expose those credentials at least to smtp.js cause by generating a security token, they store your credentials on their servers so the API could fetch them when you call their Email.send() method from JS.
To realize this securely, you need some kind of API on the server side for sending those mails using a mailserver (mostly with SMTP). Since you say it runs on the browser, I'm assuming that you're using Blazor WebAssembly. So either create an API project which could be called using e.g. Ajax from your WASM project or switch to Blazor Server which allows you to run the code directly on the server, if this is suiteable for the use-case.
Important: Keep an eye on misuse!
Even with your own API using credentials stored secretly on your own server, it's important to prevent misuse. If there is an API that could send Mails to anyone with your account without any limitations, it will be only a matter of time until bots will abuse them to send spam - even when the credentials are not exposed!
This can harm your on many ways:
Spam or even malicious content in your name
Your mail account got taken down
Desired mails won't be send cause your mail is on every spam-list
...
For that reasons it should be in your interest to send mails only from your servers with proper limits on that API like allowing only whitelisting senders, rate limits and so on.

This blog post may be helpful to you: Blazor (Wasm) – How to Send Email from a PWA. It invokes the user's native mail application instead of relying on a server-based or API-based implementation.
Excerpted, "...for very basic email needs is to leverage the old-school technique of using “mailto:” anchor links combined with injecting Blazor’s IJSRuntime."
protected void SendLocalEmail(string toEmailAddress, string subject, string body)
{
JsRuntime.InvokeAsync<object>("blazorExtensions.SendLocalEmail",
new object[] { toEmailAddress, subject, body });
}
Then, in your wwwroot folder, you should have a corresponding .js file (i.e. GlobalFunctions.js) that contains the corresponding JavaScript SendLocalEmail() function
window.blazorExtensions = {
SendLocalEmail: function (mailto, subject, body) {
var link = document.createElement('a');
var uri = "mailto:" + mailto + "?";
if (!isEmpty(subject)) {
uri = uri + "subject=" + subject;
}
if (!isEmpty(body)) {
if (!isEmpty(subject)) { // We already appended one querystring parameter, add the '&' separator
uri = uri + "&"
}
uri = uri + "body=" + body;
}
uri = encodeURI(uri);
uri = uri.substring(0, 2000); // Avoid exceeding querystring limits.
console.log('Clicking SendLocalEmail link:', uri);
link.href = uri;
document.body.appendChild(link); // Needed for Firefox
link.click();
document.body.removeChild(link);
}
};
function isEmpty(str) {
return (!str || str.length === 0);
}
Finally, be sure you include a reference to your .js file in the index.html file (also in the wwwroot folder):
<script src="GlobalFunctions.js"></script>
I place the above script reference below this line:
<script>navigator.serviceWorker.register('service-worker.js');</script>

How do I create a webhook in ASP.NET MVC?

I'm trying to create a simple webhook to receive a delivery receipt from Nexmo SMS service. The only documentation on their website was this.
During account set-up, you will be asked to supply Nexmo a CallBack URL for Delivery Receipt to which we will send a delivery receipt for each of your SMS submissions. This will confirm whether your message reached the recipient's handset. The request parameters are sent via a GET (default) to your Callback URL and Nexmo will be expecting response 200 OK response, or it will keep retrying until the Delivery Receipt expires (up to 72 hours).
I've been searching for ways to do this, and so far I have this method from an example I found online, although I'm not sure if this is correct. Anyways, this is being run on ASP.NET and on port 6563, so is this the port I'm supposed to be listening to? I downloaded an application called ngrok which should expose my local web server to the internet, so I ran the application and instructed it to listen onto port 6563, but no luck. I've been fiddling with it trying to find someway to post to this function.
[HttpPost]
public ActionResult CallbackURL()
{
System.IO.StreamReader reader = new System.IO.StreamReader(HttpContext.Request.InputStream);
string rawSendGridJSON = reader.ReadToEnd();
return new HttpStatusCodeResult(200);
}
Usually I can call the function directly to return the view just by visiting http://localhost:6563/Home/Index/CallbackURL
So I've inserted a breakpoint on the method signature, but it'll only get called if I remove the [HttpPost] from it. Any next steps that I should try?

First you have to remove the [HttpPost] bit because it clearly states that "parameters are sent via a GET".
Then you should also remove the return HttpStatusCodeResult(200) as it will return the 200 OK status code anyway if no error occures.
Then you should simply read the values from querystring or using model binding. Here is a sample:
public string CallbackURL()
{
string vals = "";
// get all the sent data
foreach (String key in Request.QueryString.AllKeys)
vals += key + ": " + Request.QueryString[key] + Environment.NewLine;
// send all received data to email or use other logging mechanism
// make sure you have the host correctly setup in web.config
SmtpClient smptClient = new SmtpClient();
MailMessage mailMessage = new MailMessage();
mailMessage.To.Add("...#...com");
mailMessage.From = new MailAddress("..#....com");
mailMessage.Subject = "callback received";
mailMessage.Body = "Received data: " + Environment.NewLine + vals;
mailMessage.IsBodyHtml = false;
smptClient.Send(mailMessage);
// TODO: process data (save to database?)
// disaplay the data (for degugging purposes only - to be removed)
return vals.Replace(Environment.NewLine, "<br />");
}

Before couple of weeks Asp.Net team has announced to support Web Hooks with Visual Studio.
Please have a look here for more detailed information:
https://neelbhatt40.wordpress.com/2015/10/14/webhooks-in-asp-net-a-visual-studio-extension/

Microsoft is working on ASP.NET WebHooks, a new addition to the ASP.NET family. It supports a lightweight HTTP pattern providing a simple pub/sub model for wiring together Web APIs and SaaS services.
See Introducing Microsoft ASP.NET WebHooks Preview

So the issue I was having wasn't with my webhook at all, it was actually with IIS Express. Apparently it blocks most traffic from foreign hosts so there is some tweaking you can do before tunneling anything to your server. If you follow these guides you should have a working server.
https://gist.github.com/nsbingham/9548754
https://www.twilio.com/blog/2014/03/configure-windows-for-local-webhook-testing-using-ngrok.html

Selenium Webdriver automation with emails

I'm currently trying to use Selenium Webdriver (C#) to automate a Forgot Password -> Reset Password workflow, where the user navigates to a page and supplies their username, and the backend code validates the username, then sends an email with a reset password link to the email address associated with their account.
I'm able to automate the process up to the point where the code sends the email, but I don't know any ways of checking for the email and/or clicking a link in the email, so I was hoping someone more experienced with Selenium/automation may be able to give me a few pointers.
Ideally the test should not care about the email address that the email is being sent to. Is there a way for Selenium WebDriver or some 3rd party package to catch the email being sent?
Thanks for any input or suggestions.

No. You are talking about setting up an email server, which is not an easy task.
You should send it to a test work email (if this is for a company), or a public email (hotmail/gmail), or if security is not an issue at all, the easiest place to send it would be a disposable email (mailinator)

You could try PutsBox. You can send an email to whatever-you-want#putsbox.com, wait for a few seconds (SMTP stuff ins't instantaneous) then check your email via http://preview.putsbox.com/p/whatever-you-want/last.
Have a look at this post tutorial, it can give you some ideas.

There is no integration of selenium with email clients like Thunderbird/Outlook. But if you have a web interface of the same email client, then you can access the email from browser and using selenium you can read and respond to the emails. I have tried this recently and it works fine where I have used web Outlook for testing.
Hope this helps.

Hi I was in a similar situation and was able to successfully implement a way to get an activation or forgotten password links.
Using Java Mail API I was able to trigger a method when such action is performed which goes into a Folder and read a specific message line then get the link and open it up in a browser using WebDriver.
However the main drawback with this is the inconsistency of reading a specific folder, sometimes emails goes to spam or other folder (in case of Gmail the new Social Folder) making it invisible or difficult to be retrieved.
Overall i think its a process that shouldn't really be automated, In terms of testing it should be done more code base level by mocking responses.
Snippet below should give you an idea on how to go about implementing
public class RefactoredMail {
public static void main(String[] args) {
Properties props = new Properties();
props.setProperty("mail.store.protocol", "imaps");
try {
Session session = Session.getInstance(props, null);
Store store = session.getStore();
store.connect("imap.gmail.com", "username", "password");
Folder inbox = store.getFolder("INBOX");
inbox.open(Folder.READ_ONLY);
Message msg = inbox.getMessage(inbox.getMessageCount());
Address[] in = msg.getFrom();
for (Address address : in) {
System.out.println("FROM:" + address.toString());
}
Multipart mp = (Multipart) msg.getContent();
BodyPart bp = mp.getBodyPart(0);
System.out.println("SENT DATE:" + msg.getSentDate());
System.out.println("SUBJECT:" + msg.getSubject());
System.out.println("CONTENT:" + bp.getContent());
System.out.println("Activation Link:" + ((String)
bp.getContent()).startsWith("http"));
String [] line = new String[1];
line [0] = mp.getContentType().toString();
System.out.println("Activation Link:" + (mp.getBodyPart(0).getLineCount()));
System.out.println("Activation Link:" +line[0]);
} catch (Exception e) {
e.printStackTrace();
}
//WebDriver Stuffs
public String activationUrl() {
//getting the url link and making it a global variable .... etc
//Accessing the link
}
}

You can use https://github.com/cmendible/netDumbster or http://ndumbster.sourceforge.net/default.html. I've used one i forget which. This will host an smtp listener and allow you to make assertions against any email it receives. Its kind of awesome! The caveat is you need to be able to control where the server delivers mail in the environment you are testing.

C#: What is the best method to send support request via email?

I have a windows forms application that I am adding a request support form to, and would like the user to be able to input the values and hit a button. Once the button is pushed I can either:
Open a new mail message and auto populate the message. (Not sure how to do this)
Submit the request via a http form on my website. (I know how to do this)
Send an email directly from the code of the application. (I know how to do this)
What I want to know is what would be the best method to use? I think option 1 is the most transparent, and the user will see exactly what is being sent, but I am not sure how to ensure it works no matter what email client they use.
I see there being potential issues with option two, specifically a firewall possibly stopping the submission. But option 2 would allow me to supply them with a ticket number right then and there for their request.
Thanks for the help.

For Option 1, as suggested, use the mailto handler.
Format your string like so: string.Format("mailto:support#example.com?subject={0}&body={1}", subject, body). Don't forget to UrlEncode the subject and body values.
Then use System.Diagnostics.Process.Start() with your string.
This will launch the registered mail handler (Outlook, Windows Live Mail, Thunderbird, etc) on the system.

For option 1 : If the message body is short, then invoking the mailto handler from inside your code no longer requires that they be using outlook. It's kinda a cheap hack, but it's completely cross-platform for local mail clients. (If they're using something like gmail, you're still SOL, though)

Option 2) is the best to avoid enterprise firewall issues because the HTTP port may not be blocked.
Option 2) is the best for simple configuration. The only config key you will have is the service/page url. Then your SMTP configuration will stay on your webserver.
Now you will have to choose between using a webpage (if one already exists) or a webservice (which is best fitted for your feature).

For option (1) be prepared to deal with Outlook version problems. But this is not hard (again if we are talking about Outlook, last version)
//using Microsoft.Office.Interop.Outlook;
private void OutlookMail(string Subject, string Body)
{
ApplicationClass app = new ApplicationClass();
NameSpaceClass ns = (NameSpaceClass)app.GetNamespace("mapi");
ns.Logon("", "", true, true);
MailItem mi =
(MailItem)app.CreateItem(OlItemType.olMailItem);
mi.Subject = Subject;
int EOFPos = Body.IndexOf(char.Parse("\0"));
if (EOFPos != -1)
{
log.Error("EOF found in Mail body");
ErrorDialog ed = new ErrorDialog(TietoEnator.Common.ErrorDialog.ErrorDialog.Style.OK, "Export Error", "File could not be exported correctly, please inform responsible person", "", "EOF char detected in the body of email message.");
ed.ShowDialog();
Body=Body.Replace("\0", "");
}
mi.HTMLBody = "<html><head><META content='text/html; charset=CP1257' http-equiv=Content-Type></head><body><table>"+Body+"</table></body></html>";
mi.BodyFormat = OlBodyFormat.olFormatHTML;//.olFormatPlain;
mi.Display(0); // show it non - modally
ns.Logoff();
}
BTW for automatic support requests I plan to use in my current project "Microsoft Enterprise Logging Support Block" email sending functionality.

Integrate Microsoft Office Communicator 2007 in ASP.NET Page

I am working on a website build using ASP.NET and C# for my company's intranet.So is it possible to integrate the Microsoft Office Communicator 2007 in ASP.NET Page. i.e. the site should be able to provide the current status(avalible, busy , offline) of all contacts and when a user clicks on the username, the chat window should open.

Assuming the client machine is running Communicator, Office and IE, by far the simplest way is to use the NameCtrl in client-side script - the example below should gives the basic concepts. This will also give you the most bang-for-buck in terms of functionality. Hover over the "Your Contact" text to see the persona menu pop up.
For a real world solution, you'd just need to implement an image that changes depending on the presence state that gets returned (i.e. a presence bubble to display alongside each users name), and a collection of sip uris to images, to ensure you can map an incoming status change to the relevant image.
It's worth bearing in mind that the Ajax/CWA solution mentioned in the other answer will most likely not work with Lync Server (I believe Communicator Web Access is no more) so you'd need to change the solution if your company upgrades to Lync. I've tested the solution below, and it works with the Lync Server RC.
<script>
var sipUri = "your.contact#your.domain.com";
var nameCtrl = new ActiveXObject('Name.NameCtrl.1');
if (nameCtrl.PresenceEnabled)
{
nameCtrl.OnStatusChange = onStatusChange;
nameCtrl.GetStatus(sipUri, "1");
}
function onStatusChange(name, status, id)
{
// This function is fired when the contacts presence status changes.
// In a real world solution, you would want to update an image to reflect the users presence
alert(name + ", " + status + ", " + id);
}
function ShowOOUI()
{
nameCtrl.ShowOOUI(sipUri, 0, 15, 15);
}
function HideOOUI()
{
nameCtrl.HideOOUI();
}
</script>
<span onmouseover="ShowOOUI()" onmouseout="HideOOUI()" style="border-style:solid">Your Contact</span>