Hi Please, anyone can help me? I need to know how send email asyncronously using VB.NET with ASP.NET (Visual Studio 2008). Thank You.
What do you mean by 'asyncronously'? Try looking at this kb article. http://support.Winhost.com/KB/a650/how-to-send-email-in-aspnet.aspx
Hi Ray I already saw this article and I use exactly this code in my site. But I need to know how can I use the method SmtpMail.SendAsync() and not the method SmtpMail.Send(). The method SmtpMail.SendAsync() use 2 parameters and is usefull when the application doesnt need to wait for the email to be sent. Thank You Eduardo Benoliel
Is there a reason why you can't use the SmtpMail.Send method? For the most part this method is more then enough to sustain the business needs of our customers when sending out email from their web application. I'll have to check with our systems administrator and verify if they allow 'SmtpMail.SendAsync' on our servers.
Ray The use of SendAsync is usefull , for example, when I need to report to myself any problem during the use of application without demage of the response performance. Thank You
I just checked with our developer and we should support the 'SmtpMail.SendAsync' method. Whats the error message you are getting?
I receive the error message: failure sending mail. this is my code: Imports System.Web.SessionState Imports System.Net.Mail.MailMessage Imports System.Net.Mail.SmtpClient Imports System.Net Imports System.Net.Mail Imports System.ComponentModel Public Class Global_asax Inherits System.Web.HttpApplication Public Function EnviaEmal(ByVal cto As String, ByVal cbody As String) As Boolean Dim msg As String = "---" Dim lRet As Boolean = True Dim strFrom = "[email protected]" Dim strTo = cto '"[email protected]" Dim MailMsg As New System.Net.Mail.MailMessage(New MailAddress(strFrom.Trim()), New MailAddress(strTo)) MailMsg.BodyEncoding = Encoding.Default MailMsg.Subject = "txtrial.co.cc usado" MailMsg.Body = cbody MailMsg.Priority = MailPriority.High MailMsg.IsBodyHtml = True Dim SmtpMail As New SmtpClient Dim basicAuthenticationInfo As New System.Net.NetworkCredential("[email protected]", "***") SmtpMail.Host = "mail.txtrial.co.cc" SmtpMail.UseDefaultCredentials = False SmtpMail.Credentials = basicAuthenticationInfo Dim userState As Object = MailMsg 'wire up the event for when the Async send is completed AddHandler SmtpMail.SendCompleted, AddressOf SmtpClient_OnCompleted Stop Try SmtpMail.SendAsync(MailMsg, userState) Catch ex As Exception 'Stop msg = ex.Message lRet = False End Try MailMsg.Dispose() Return lRet End Function Public Sub SmtpClient_OnCompleted(ByVal sender As Object, ByVal e As ComponentModel.AsyncCompletedEventArgs) 'Get the Original MailMessage object Dim mail As MailMessage = CType(e.UserState, MailMessage) 'write out the subject Dim subject As String = mail.Subject If e.Cancelled Then Console.WriteLine("Send canceled for mail with subject [{0}].", subject) End If If Not (e.Error Is Nothing) Then Console.WriteLine("Error {1} occurred when sending mail [{0}] ", subject, e.Error.ToString()) Else Console.WriteLine("Message [{0}] sent.", subject) End If End Sub 'SmtpClient_OnCompleted
Make sure the following Typo is not present in your actual code: "Dim basicAuthenticationInfo As New System.Net.NetworkCredential("[email protected] o.cc", "***")" '.c o.cc'
Hi I found 2 problems and fixed both: 1) After the method SmtpMail.SendAsync(MailMsg, userState) I can't execute the method MailMsg.Dispose() 2) I must set Async="true" in : <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" uiculture="auto" EnableSessionState = "True" ValidateRequest="true" Buffer="true" Async="true" %> Now the SendAsync method is working fine. Thank you very much.
