I'd be grateful if someone could tell me if I'm on the right track... Basically, I have a webservice i need to run for my app, I've put it into a try catch, if the try fails I want the catch to send me an email message with the details of the exception.
try
{
// run webservice here
}
catch (Exception ex)
{
string strTo = "scott#...";
string strFrom = "web#...";
string strSubject = "Webservice Not Run";
SmtpMail.SmtpServer = "thepostoffice";
SmtpMail.Send(strFrom, strTo, strSubject, ex.ToString());
}
Yes you are but you'd better wrapp yor exception handler in some kind of logger or use existing ones like Log4Net or NLog.
A quick and easy way to send emails whenever an Exception occurs can be done like this:
SmtpClient Server = new SmtpClient();
Server.Host = ""; //example: smtp.gmail.com
Server.Port = ; //example: 587 if you're using gmail
Server.EnableSsl = true; //If the smtp server requires it
//Server Credentials
NetworkCredential credentials = new NetworkCredential();
credentials.UserName = "youremail#gmail.com";
credentials.Password = "your password here";
//assign the credential details to server
Server.Credentials = credentials;
//create sender's address
MailAddress sender = new MailAddress("Sender email address", "sender name");
//create receiver's address
MailAddress receiver = new MailAddress("receiver email address", "receiver name");
MailMessage message = new MailMessage(sender, receiver);
message.Subject = "Your Subject";
message.Body = ex.ToString();
//send the email
Server.Send(message);
Yes this the right way, if you don't want to use any logger tool.You can create function SendMail(string Exceptioin) to one of the your common class and than call this function from each catch block
Related
I wanted to know how I can send a logged email (visible in sent items) via smtp in c#.
Model I'm using :
try
{
SmtpClient mailServer = new SmtpClient("smtp.gmail.com", 587);
mailServer.EnableSsl = true;
mailServer.Credentials = new System.Net.NetworkCredential("myemail#gmail.com", "mypassword");
string from = "myemail#gmail.com";
string to = "reciever#gmail.com";
MailMessage msg = new MailMessage(from, to);
msg.Subject = "Enter the subject here";
msg.Body = "The message goes here.";
msg.Attachments.Add(new Attachment("D:\\myfile.txt"));
mailServer.Send(msg);
}
catch (Exception ex)
{
Console.WriteLine("Unable to send email. Error : " + ex);
}
But i can't see it in sent mails.
Short answer: You can't.
The only way to add the message to your Sent folder is to specifically add it there yourself using the IMAP protocol (or via a library that implements the IMAP protocol).
The code I currently have is:
public void SendEmail(string to, string cc, string bcc, string subject, string body, string attachmentPath = "", System.Net.Mail.MailPriority emailPriority = MailPriority.Normal, BodyType bodyType = BodyType.HTML)
{
try
{
var client = new System.Net.Mail.SmtpClient();
{
client.Host = "smtp-mail.outlook.com";
client.Port = 587;
client.UseDefaultCredentials = false;
client.EnableSsl = true;
client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
client.Credentials = new NetworkCredential("[my company email]", "[my password]");
client.Timeout = 600000;
}
MailMessage mail = new MailMessage("[insert my email here]", to);
mail.Subject = subject;
mail.Body = body;
client.Send(mail);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
The email address I'm trying to send to is hosted on Office 365's Outlook. We might have to change the specific address later, but they'd likely be configured the same.
However, whenever I try to run the client.Send(mail); command, I receive the same error. The full text of the error is:
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM
I've tried a few different things, like switching the port between 25 and 587, changing the host to Office365's, or toggling UseDefaultCredentials and EnableSssl to true or false. But I always see the same error. Is there something else I'm missing?
I found an example code block elsewhere on this site and replacing everything I had with it made the difference.
The function name and parameters were the same, but here's what I replaced the body of it with.
var _mailServer = new SmtpClient();
_mailServer.UseDefaultCredentials = false;
_mailServer.Credentials = new NetworkCredential("my email", "my password");
_mailServer.Host = "smtp.office365.com";
_mailServer.TargetName = "STARTTLS/smtp.office365.com";
_mailServer.Port = 587;
_mailServer.EnableSsl = true;
var eml = new MailMessage();
eml.Sender = new MailAddress("my email");
eml.From = eml.Sender;
eml.To.Add(new MailAddress(to));
eml.Subject = subject;
eml.IsBodyHtml = (bodyType == BodyType.HTML);
eml.Body = body;
_mailServer.Send(eml);
I don't know for certain but I think that replacing the Host value with the smtp Office 365 link rather than an outlook one, as well as remembering to add a Target Name which I did not have before, both did the trick and solved the authorization issue (I had previously confirmed it wasn't a credentials issue with our tech support).
I wrote a simple application for windows to send some emails to members of my mailing list.
The program uses my gmail account to send via SMTP. I do not want my customers having that account however, I want them to see instead the corporate email.
I sent myself some emails to test, but the emails I am recieving are showing sent from the email account Ive logged in with at google. Any ideas?
The mail function:
public void SendEmail()
{
//smtp host and port for gmail
string host = txtHost.Text;
int port;
if (!Int32.TryParse(txtPort.Text, out port))
{
MessageBox.Show("Please enter a valid port number.");
return;
}
//compose email
MailMessage msg = new MailMessage();
msg.Sender = new MailAddress(txtFrom.Text, txtFrom.Text);
msg.From = new MailAddress(txtFrom.Text, txtFrom.Text);
msg.To.Add(txtTo.Text);
msg.Subject = txtSubject.Text;
msg.Body = rTxtMessage.Text;
msg.IsBodyHtml = chkHtml.Checked;
//msg.From = new MailAddress(txtFrom.Text, txtFrom.Text);
//create smtp client
SmtpClient smtp = new SmtpClient(host, port);
//TODO: Move constants to the NetworkCredentials call
string username = SMTP_USERNAME;
string password = SMTP_PASSWORD;
smtp.UseDefaultCredentials = false;
smtp.Credentials = new NetworkCredential(username, password);
smtp.EnableSsl = true;
try
{
//Send email
smtp.Send(msg);
}
catch (Exception exp)
{
//Log if any errors occur
MessageBox.Show(exp.Message);
}
}
And the application and result screenshots:
You should set:
msg.Sender
to your Company address.
I am working on a page where I have to send an email in C#.
I followed the codes on
http://blogs.msdn.com/b/mariya/archive/2006/06/15/633007.aspx
and came upon this two exceptions
A first chance exception of type 'System.Net.Mail.SmtpException' occurred in System.dll. A first chance exception of type
'System.Threading.ThreadAbortException' occurred in mscorlib.dll
Here are the codes I implemented. I can't seem to figure what went wrong.
//Send email notification - removed actual email for this question
SmtpClient client = new SmtpClient("smtp.gmail.com", 587);
client.EnableSsl = true;
MailAddress from = new MailAddress("myemail#gmail.com", "My name is here");
MailAddress to = new MailAddress("anotherpersonsemail#gmail.com", "Subject here");
MailMessage message = new MailMessage(from, to);
message.Body = "Thank you";
message.Subject = "Successful submission";
NetworkCredential myCreds = new NetworkCredential("myemail#gmail.com",
"mypassword", "");
client.Credentials = myCreds;
try
{
client.Send(message);
Console.Write(ex.Message.ToString());
}
catch (Exception ex)
{
Console.Write(ex.Message.ToString());
}
For sharing purposes, I managed to resolve my problem by enabling access for less secure apps in Gmail.
It works like a charm now! https://www.google.com/settings/security/lesssecureapps
To authenticate SMTP in Outlook, the articles below are very useful too.
http://www.tradebooster.com/web-hosting-articles/how-to-enable-smtp-authentication-in-outlook-2010/
https://www.authsmtp.com/outlook-2010/default-port.html
//bulk Emails using mailkit you have to import it by nuget manager
//set in gmail https://myaccount.google.com/lesssecureapps?pli=1 to be on
// Read Text File
public void ReadFileAndSend()
{
using (StreamReader reader = new StreamReader(#"d:\Email.txt"))
{
while (!(reader.ReadLine() == null))
{
String line = reader.ReadLine();
if (line != "")
{
try
{
Send("", line.Trim());
Thread.Sleep(500);
}
catch
{
}
}
}
Console.ReadLine();
}
}
public void Send(String FromAddress,String ToAddress)
{
try
{
string FromAdressTitle = "";
string ToAdressTitle = "";
string Subject = "";
string BodyContent = "";
string SmtpServer = "smtp.gmail.com";
int SmtpPortNumber = 587;
var mimeMessage = new MimeMessage();
mimeMessage.From.Add(new MailboxAddress(FromAdressTitle, FromAddress));
mimeMessage.To.Add(new MailboxAddress(ToAdressTitle, ToAddress));
mimeMessage.Subject = Subject;
mimeMessage.Body = new TextPart("html")
{
Text = BodyContent
};
using (var client = new MailKit.Net.Smtp.SmtpClient())
{
client.Connect(SmtpServer, SmtpPortNumber, false);
client.Authenticate("your email", "pass");
client.Send(mimeMessage);
Console.WriteLine("The mail has been sent successfully !!");
client.Disconnect(true);
}
}
catch (Exception ex)
{
throw ex;
}
}
Answer Update 2023
After Google introduced a Two-step verification system in Google Accounts, it's not easy to use Gmail for your own personal usage so to solve this problem, I figured out a way to use Gmail as an email medium to send emails using C#.
The C# code for email service is included here: https://www.techaeblogs.live/2022/06/how-to-send-email-using-gmail.html
Following just the 2-step tutorial from the above link, you can fix your issue in no time.
I have my code here, it works fine from my home, where my user is administrator, and I am connected to internet via a cable network.
But, problem is when I try this code from my work place, it does not work. Shows error:
"unable to connect to the remote server"
From a different machine in the same network:
"A socket operation was attempted to an unreachable network 209.xxx.xx.52:25"
I checked with our network admin, and he assured me that all the mail ports are open [25,110, and other ports for gmail].
Then, I logged in with administrative privilege, there was a little improvement, it did not show any error, but the actual email was never received.
Please note that, the code was tested from development environment, visual studio 2005 and 2008.
Any suggestion will be much appreciated.
Thanks in advance
try
{
MailMessage mail_message = new MailMessage("xxxxx#y7mail.com", txtToEmail.Text, txtSubject.Text, txtBody.Text);
SmtpClient mail_client = new SmtpClient("SMTP.y7mail.com");
NetworkCredential Authentic = new NetworkCredential("xxxxx#y7mail.com", "xxxxx");
mail_client.UseDefaultCredentials = true;
mail_client.Credentials = Authentic;
mail_message.IsBodyHtml = true;
mail_message.Priority = MailPriority.High;
try
{
mail_client.Send(mail_message);
lblStatus.Text = "Mail Sent Successfully";
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
lblStatus.Text = "Mail Sending Failed\r\n" + ex.Message;
}
}
catch (Exception ex)
{
lblStatus.Text = "Mail Sending Failed\r\n" + ex.Message;
}
Here is some sample code that works for me and talks to a gmail server
private void SendEmail(string from, string to, string subject, string body)
{
MailMessage mail = new MailMessage(new MailAddress(from), new MailAddress(to));
mail.Subject = subject;
mail.Body = body;
SmtpClient smtpMail = new SmtpClient("smtp.gmail.com");
smtpMail.Port = 587;
smtpMail.EnableSsl = true;
smtpMail.Credentials = new NetworkCredential("xxx#gmail.com", "xxx");
// and then send the mail
smtpMail.Send(mail);
}
Try setting UseDefaultCredentials to false.
Also try switching SSL on for y7mail
mail_client.EnableSSL = true;
Source - http://help.yahoo.com/l/au/yahoo7/edit/registration/registration-488246.html
private void SendEmail(string from, string to, string subject, string body)
{
MailMessage mail = new MailMessage(new MailAddress(from), new MailAddress(to));
mail.Subject = subject;
mail.Body = body;
SmtpClient smtpMail = new SmtpClient("smtp.gmail.com");
smtpMail.Port = 587;
smtpMail.EnableSsl = true;
smtpMail.Credentials = new NetworkCredential("xxx#gmail.com", "xxx");
// and then send the mail
smtpMail.Send(mail);
}
This is the best answer for System.Exception Problem. Totally verified, you need to provide username and password at network credentials. Also try to give this solution to other sites.