?
Solved

Problem sending Email from VB.NET application

Posted on 2009-04-07
2
Medium Priority
?
325 Views
Last Modified: 2013-11-30
Hello,

This is a problem with a simple DOT NET 2 application which sends emai using system.net.mail.

It works fine here at the office on my notebook with a nuber of SMTP servers.

However at the client's site (I change the SMTP server/port to the one they need to use), the email function hangs and after a long time (Several minutes) gives a timeout error message.  In the meantime while I am waiting I cannot end the process even if I used task manager.

I can ping the mail server and get the three expected replies.

I am not sure where to begin to diagnose the problem.   It is on a large corporate network and I cannot hook my notebook into it and they are locked down so I cannot install another email client to test.

Thanks,

Stephen Simpson

Imports system.net.mail
 
Try
         Dim eMail As New MailMessage
         With eMail
 
              .From = New System.Net.Mail.MailAddress(sEmailReplyTo)
 
              Dim recipient As System.Net.Mail.MailAddress = New System.Net.Mail.MailAddress(Trim(sEmail))
              .To.Add(recipient)
 
              .Subject = "WTS for " & sLocation
              .Body = _
              "Attention: " & sContact & vbCrLf & _
              "Subject: # Edited by ModernMatt #" & vbCrLf & _
              "Location: " & sLocation & vbCrLf & _
              "Call Date: " & sCallDate & vbCrLf & vbCrLf & _
              sTextOfEmail
 
              .Attachments.Add(New Net.Mail.Attachment(di.FullName & "\" & Trim(sAttach)))
 
               .IsBodyHtml = False
          End With
 
         Dim smtpclient As New System.Net.Mail.SmtpClient
         smtpclient.Host = sSMTPServer 
         smtpclient.Port = sSMTPPort '1025
 
         If sSMTPUser <> "" Then
                smtpclient.Credentials = New System.Net.NetworkCredential(sSMTPUser, sSMTPPassword)  
         End If
 
         smtpclient.Send(eMail)
 
         eMail.Dispose()
 
Catch exEmail As Exception                    
           DisplayStatus("Email processing failed while processing:" & vbCrLf & sTrans & vbCrLf & exEmail.Message, True)
End Try

Open in new window

0
Comment
Question by:elmcomputers
[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
2 Comments
 
LVL 70

Accepted Solution

by:
Éric Moreau earned 1500 total points
ID: 24091435
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

It’s quite interesting for me as I worked with Excel using vb.net for some time. Here are some topics which I know want to share with others whom this might help. First of all if you are working with Excel then you need to Download the Following …
What is Usenet? There are many different opinions on exactly what Usenet is an isn't. Many opinions are incorrect simply out of ignorance. The Wikipedia listing about Usenet does a good job of explaining it, so instead of repeating it all here I wi…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
In this video, Percona Director of Solution Engineering Jon Tobin discusses the function and features of Percona Server for MongoDB. How Percona can help Percona can help you determine if Percona Server for MongoDB is the right solution for …
Suggested Courses
Course of the Month11 days, 1 hour left to enroll

770 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