?
Solved

Sending Email SMTP Client Asynchronously

Posted on 2015-01-14
1
Medium Priority
?
47 Views
Last Modified: 2016-01-30
I need to send email asychronously without interrupting the calling thread, but the built in sendasync method does block the calling thread.  If I run the software I'm using with an internet connection, there is no problem, but if I disconnect the computer from the internet, the software will freeze for approximately 15 seconds before giving up the attempt to send the email.  Here is the code I'm using:


        public void Send_Error_Email(SmtpClient inputClient, MailMessage inputMessage)
        {
            inputClient.SendCompleted += new SendCompletedEventHandler(error_SendCompleted);

            if (inputMessage.To != null)
            {
                if (inputMessage.To.Count > 0)
                {
                    //fix error regarding 'Mailbox unavailable'
                    inputClient.SendAsync(inputMessage, "Email");
                }
            }

Is there something wrong with this code?  I thought it was supposed to run on its own thread based on the MSDN description, but it does not do so. Thanks for any help you can offer.
0
Comment
Question by:l2Bravo
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 

Accepted Solution

by:
l2Bravo earned 0 total points
ID: 40591766
Nobody answered the question, but I found a solution by simply creating my own thread to send the email.  While the documentation seems to indicate the SendAsync method does this automatically, I assumed I did not have to.  But, because the documentation does not seem to be correct (or I'm reading it wrong), I created a simple thread to send the email and close after that action is completed, with a timeout of 10 seconds on the Send method.
0

Featured Post

Get your Conversational Ransomware Defense e‑book

This e-book gives you an insight into the ransomware threat and reviews the fundamentals of top-notch ransomware preparedness and recovery. To help you protect yourself and your organization. The initial infection may be inevitable, so the best protection is to be fully prepared.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article shows how to make a Windows 7 gadget that accepts files dropped from the Windows Explorer.  It also illustrates how to give your gadget a non-rectangular shape and how to add some nifty visual effects to text displayed in a your gadget.…
If you have ever found yourself doing a repetitive action with the mouse and keyboard, and if you have even a little programming experience, there is a good chance that you can use a text editor to whip together a sort of macro to automate the proce…
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…

800 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question