smtpclient

How can we log the SMTP conversation with SmtpClient?

て烟熏妆下的殇ゞ 提交于 2019-12-03 13:04:12
问题 E.g., for troubleshooting I need to see what SMTP messages go back and forth: OUT : EHLO machinename IN : 250-ReallyCoolEmailServer Hello [10.24.41.72] IN : 250-SIZE IN : 250-PIPELINING IN : (...and so on...) OUT : MAIL FROM: <some.address@example.com> IN : 250 <some.address@example.com>... Sender ok ...and so on. I'm not finding any logging options in the documentation. The only questions here I can find about SmtpClient either don't talk about seeing the actual conversattion, or talk about

Difference between smtpClient.send() and smtpClient.SendAsync()?

青春壹個敷衍的年華 提交于 2019-12-03 11:02:57
I am trying to send mail from localhost.. and on doing this i have got methods from different sites to sending mails..but on doing this i am confused between smtpClient.send() and smtpClient.SendAsync() .. I want to know that How they are different from each other??? Thanks in advance.. smtpClient.send() will initiate the sending on the main/ui thread and would block. smtpClient.SendAsync() will pick a thread from the .NET Thread Pool and execute the method on that thread. So your main UI will not hang or block. Async Method Invocation - http://www.codeproject.com/KB/cs/AsyncMethodInvocation

Cannot send email in ASP.NET through Godaddy servers

。_饼干妹妹 提交于 2019-12-03 07:52:22
问题 I have an ASP.NET application hosted on Godaddy that I want to send email from. When it runs, I get: Mailbox name not allowed. The server response was: sorry, relaying denied from your location. The important parts of the code and Web.config are below: msg = new MailMessage("accounts@greektools.net", email); msg.Subject = "GreekTools Registration"; msg.Body = "You have been invited by your organization to register for the GreekTools recruitment application.<br/><br/>" + url + "<br/><br/>" +

Why can SmtpClient.SendAsync only be called once?

不问归期 提交于 2019-12-03 07:44:07
问题 I'm trying to write a notification service (for completely legit non-spam purposes) in .NET using SmtpClient. Initially I just looped through each message and sent it, however this is slow and I would like to improve the speed. So, I switched to using 'SendAsync', but now get the following error on the second call: An asynchronous call is already in progress. I read this to mean that MS crippled System.Net.Mail to prevent mass-mailers. Is this correct? If so, is there a better way to do this

How can we log the SMTP conversation with SmtpClient?

元气小坏坏 提交于 2019-12-03 03:25:00
E.g., for troubleshooting I need to see what SMTP messages go back and forth: OUT : EHLO machinename IN : 250-ReallyCoolEmailServer Hello [10.24.41.72] IN : 250-SIZE IN : 250-PIPELINING IN : (...and so on...) OUT : MAIL FROM: <some.address@example.com> IN : 250 <some.address@example.com>... Sender ok ...and so on. I'm not finding any logging options in the documentation . The only questions here I can find about SmtpClient either don't talk about seeing the actual conversattion, or talk about using third party tools like WireShark. It seems like a pretty big omission, so I'm guessing I'm just

Error in Sending Email via a SMTP Client

你。 提交于 2019-12-03 03:22:25
This may be very trivial for you but i just couldn't figure out why am i getting this error message when i run my code. I looked some of the relative questions on this same website for eg Sending email through Gmail SMTP server with C# but none of them was helpful. Anyone willing to help please? using different assemblies are also acceptable. so if anyone got a working solution that would be appreciated. Error Message = The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at here is my code System

Why can SmtpClient.SendAsync only be called once?

十年热恋 提交于 2019-12-02 20:29:43
I'm trying to write a notification service (for completely legit non-spam purposes) in .NET using SmtpClient. Initially I just looped through each message and sent it, however this is slow and I would like to improve the speed. So, I switched to using 'SendAsync', but now get the following error on the second call: An asynchronous call is already in progress. I read this to mean that MS crippled System.Net.Mail to prevent mass-mailers. Is this correct? If so, is there a better way to do this in .NET, and still be able to log the results of each email(which is important to our client). If not,

C# SMTP authentication failed but credentials are correct

坚强是说给别人听的谎言 提交于 2019-12-02 12:04:46
Here is my problem: I wrote whe following program to test if I can send email: class Program { static void Main(string[] args) { try { Console.WriteLine("Mail To"); MailAddress to = new MailAddress("myemail@gmail.com"); Console.WriteLine("Mail From"); MailAddress from = new MailAddress("me@businessdomain.it"); MailMessage mail = new MailMessage(from, to); Console.WriteLine("Subject"); mail.Subject = "test"; Console.WriteLine("Your Message"); mail.Body = "test"; SmtpClient smtp = new SmtpClient(); smtp.Host = "mail.domain.it"; smtp.Port = 25; smtp.Credentials = new NetworkCredential( "username"

Unable to send email to other domains using System.Net.Mail.SmtpClient

孤人 提交于 2019-12-02 09:18:55
Please look at the following code: client.Credentials = new NetworkCredential(SMTP_SERVER_USERNAME, SMTP_SERVER_PASSWORD); client.EnableSsl = false; client.Host = SMTP_SERVER_HOSTNAME; client.Port = 587; client.UseDefaultCredentials = false; client.Timeout = 4000; MailMessage message = new MailMessage(); message.Body = "Test"; message.From = new MailAddress(MY_OWN_ADDRESS); message.ReplyToList.Add(message.From); message.Sender = message.From; message.Subject = SUBJECT_LINE; message.To.Add(RECIPIENT_ADDRESS); I am currently unable to use it to send emails. The code resides in an ASP.NET MVC 3

How to send an email from my C# codebehind - Getting System.Net.Mail.SmtpFailedRecipientException

不问归期 提交于 2019-12-02 05:07:54
问题 I have a webform where someone can set up an account - I want to send them an email confirmation. The code I'm using: // Create e-mail message MailMessage mm = new MailMessage(); mm.From = new MailAddress("OurOrganisationEmail@ourdomain.com", "Our Organisation"); mm.To.Add(new MailAddress("webuser@domain.com", "Web User")); mm.Subject = "Confirmation"; mm.Body = "You are now registered test"; mm.IsBodyHtml = true; // Send e-mail sc = new SmtpClient(); NetworkCredential basicAuthenticationInfo