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Email Event Handling in c# [closed]

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I need to implement event on email body i.e when i am sending mail using SmtpClient and after sending mail when user click anywhere in email body need to redirect to another page .
Please Help me.

For this you have to do few things:
Construct your mail body as html tags, enclose all contents inside an anchor tag with href points to the site to be redirected to.
set IsBodyHtml property of the MailMessage object to true
Send the mail
Try something like this:
string mailBodyHtml = "<a href='https://YourSiteName.com'> enclose the whole content here </a>
MailMessage mail = new MailMessage("fromAddress", "toAddress", "subject here", mailBodyHtml);
mail.IsBodyHtml = true;
SmtpClient client = new SmtpClient("localhost");
client.Send(mail);

cancel Send mail using smtp SMTP

In my application, I'm using SmtpClient for sending emails(only from gmail accounts). everything is fine and perfect.
I Saw an option in gmail that allows us to cancel/undo the send mail. as shown in the below image.Here my question is regarding that, how can i cancel/undo the send mail from my program based on some conditions.
following is the code i'am using for sending mail:
MailMessage mail = new MailMessage("frommail#company.net", "mail#gmail.com");
SmtpClient client = new SmtpClient();
client.Port = 587;
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.UseDefaultCredentials = false;
client.Credentials = new System.Net.NetworkCredential("frommail#company.net", "xxxxxxx");
client.Host = "smtp.gmail.com";
client.EnableSsl = true;
mail.Subject = "this is a test email.";
mail.Body = "this is my test email body";
client.Send(mail);
// this is what i want to do
if(someCondition=true)
{//undo the send operation}

From my limited knowledge, you cannot cancel a mail that was sent to a mail server. You can accomplish the undo functionality by:
Save the mail details in a table (lets call it pending_emails) on your server
A (delayed job is scheduled) or (recurring job runs every X minutes) and queries pending_emails for entries made 5 minutes earlier and sends them to the smtp server (as you are doing now)
The job sends the email and deletes the email from pending_emails
The undo button deletes the email from pending_emails

Google just delays the send of the email by 30 seconds, easiest way to do it yourself is an async timer of 30 seconds before sending it via smtp or using a filter before sending.

How to send mail in c# instantly or at least perform it in background [closed]

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Closed 8 years ago.
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I am using smtp client and mail message class of c# in order to send mail. The mail is to be send to one or at most two users at a time. However, the mail sending process is slow. it takes almost 5-8 second to send mail. Till this time, the page remains in idle position. Is there a way in asp.net c# to send mail instantly or at least redirect to another page and perform the mail sending operation at background so that user do not feel delay. Any suggestions!! I had done research on smtpclient.sendmailAsync but in using this property, mail was not send.. Thanks in advance

Task sendEmail = new Task(() =>
{
//create the mail message
MailMessage 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";
mail.Body = "this is a sample body";
//send the message
SmtpClient smtp = new SmtpClient();
smtp.Port = 465;
smtp.UseDefaultCredentials = true;
smtp.Host = "smtp.gmail.com";
smtp.EnableSsl = true;
smtp.Credentials = new NetworkCredential("youGmailAddress#gmail.com", "YourPassword");
smtp.Send(mail);
});
sendEmail.Start();

Issue in receiving emails [duplicate]

This question already has answers here:
The SMTP server requires a secure connection or the client was not authenticated
(3 answers)
Closed 8 years ago.
I am doing my project in mvc4 using c#. I have a contact page i my website. My need is that i have to receive messages to my email id from other id's, when clicking the Send button.I use the following code
public void ReceiveMail(string name,string email,string message)
{
MailMessage msg = new MailMessage();
HttpContext ctx = HttpContext.Current;
msg.To.Add(new MailAddress("MyEmailId"));
msg.From = new MailAddress(email);
msg.Subject =name + "send a message";
msg.Priority = MailPriority.High;
msg.Body = message;
SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");// i am confused what to write here
SmtpServer.Send(msg);
}
It shows the error
The SMTP server requires a secure connection or the client was not authenticated.
The server response was: 5.7.0 Must issue a STARTTLS command first.
at4sm42219747pbc.30 - gsmtp
I don't know from which server i got the mail. Then how can i solve this issue . Please help me

Sending emails with Gmail requires some additional settings. At first, port number should be 587 (instead of default 25). At second, Gmail requires secure connection. And of course you should provide valid credentials.
All in all, initialization of SmtpClient should look like this:
SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com", 587);
SmtpServer.EnableSsl = true;
SmtpServer.Credentials = new NetworkCredential("username#gmail.com", "password");

as the error says, a STARTTLS command should be used first. Thas means gmail only accepts mail via secure connection. In this answer enableSsl was set to true. As the documentation from microsoft says, the SmtpClient class has such an property too. Furthermore you should leave your credentials in the smptClient. I think gmail only accepts mail from authenticate users. I think the whole problem is solved here.

You need to use NetworkCredential to login into Gmail SMTP server. Error is very apparent.
SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
smtp.EnableSsl = true;
smtp.UseDefaultCredentials = false;
smtp.Credentials = new NetworkCredential("your-email", "your-password");

Have you tried:
smtpServer.Host = "smtp.gmail.com";
smtpServer.Port = 587;
smtpServer.Credentials =
new NetworkCredential("SenderGmailUserName", "SenderPassword");

how to use mailing system in C# [closed]

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i want to have an email system , when user done an action after that someone recieve an email in C#
so now how I can do that ??

You could use the .Net SmtpClient class as follows:
using System.Net.Mail;
// the e-mail details
String from = "me#server.com";
String to = "someone#server.com";;
// build up the message
MailMessage message = new MailMessage(from, to);
message.Subject = "My Title";
message.Body += "This is the biody of my message";
// create a server pointing to your mail server
String server = "mail.server.com";
// create a client
SmtpClient client = new SmtpClient(server);
client.Credentials = CredentialCache.DefaultNetworkCredentials;
// send the message
client.Send(message);

To send an email in .NET you could use the SmptClient class.