FAQ - Frequently Asked Questions

Re: HOW TO: Send email using System.Net.Mail

Johnny be good — Wed, 01 Aug 2007 12:01:06 GMT

Hallo all

I hope that you can help me, cos I have looked everywhere and tried everything I could think of so I got this link from Microsoft South Africa...

Application background:

I am righting (in C#) a electronic filing system that works via a windows service and checks a POP3 server every 60 seconds for mail and then by reading the subject line it either stores or retrieves documentation. EG. File policy (1234) or Retrieve Policy (1234)... All works great, but when they retrieve documentation I must wrap the saved email body with its attachments as one attachment (Content-Type: message/rfc822) to my outgoing email for there can be one or many emails that was saved to that reference number, and when one adds all the bodies and attachments as attachments it is very confusing for the end users..(this is Africa you know...)

So I want to be able to add children to my parent email and the children must be attachments...

Even if you have some source code that builds the raw email in mime it will help me because I studied the raw Mime up and know how it works by now but can not get it to work as I only get a empty mail on the other side when I build it up as raw Mime... (I can send you my code if you need to look at it)

I thank you in advance for taking the time to look at my request!

Kind regards

Re: HOW TO: Send email using System.Net.Mail

JDMils5 — Mon, 23 Jul 2007 07:36:24 GMT

I've implemented this code into my VB.Net 2005 application. I intend to deploy my app to many workstations on my network so that they may email me by clicking a button on my application. How do I set the From address to be dynamic, ie. to automatically pickup the current user's email address (from Outlook?)?

Re: HOW TO: Send email using System.Net.Mail

KBNSarma — Sun, 22 Jul 2007 07:23:18 GMT

No Idea. I am not familiar with Linux and am using this successfully in Windows environment for ASP.NET 2.0 Version. Sorry.

K.B. Narayana Sarma

Re: HOW TO: Send email using System.Net.Mail

ojm37 — Fri, 20 Jul 2007 14:06:08 GMT

KBNSarma:

Dear All,

I am attaching herewith a file named sendmail.zip. This is an official release of Microsoft with total mail options including activating Services if Services are not activated in the system. This is very useful for everybody who wants to send mail through .NET 2.0 Version. Please download and use happily.

Regards,

K.B. Narayana Sarma

Note: Since attachment facility is not there please click this link to download. In case of problem, send a mail to me at kbnsarma@yahoo.com so that I will send by mail.

Didn't work for me. I do not have SMTP Services running on the local box (and I don't want them running there): I want to use my linux mailserver on another box. I keep getting authorization failures. How do I specify the username and login for a linux sendmail mailserver? The username/password/domain that system.net.mail use seem to be Microsoft specific network credentials.

Re: HOW TO: Send email using System.Net.Mail

KBNSarma — Fri, 20 Jul 2007 03:48:18 GMT

Dear All,

I am attaching herewith a file named sendmail.zip. This is an official release of Microsoft with total mail options including activating Services if Services are not activated in the system. This is very useful for everybody who wants to send mail through .NET 2.0 Version. Please download and use happily.

Regards,

K.B. Narayana Sarma

Note: Since attachment facility is not there please click this link to download. In case of problem, send a mail to me at kbnsarma@yahoo.com so that I will send by mail.

Re: HOW TO: Send email using System.Net.Mail

anilperugu — Thu, 19 Jul 2007 12:47:11 GMT

yes thats correct

i tried removing date from the subject now mail comes to inbox.

tanx.

Re: HOW TO: Send email using System.Net.Mail

KBNSarma — Thu, 19 Jul 2007 11:03:44 GMT

Getting mail to your Junk Mail Folder is nothing to do with your programme. That means it is working perfectly alright.

Diversion of mails to Junk Folder is the feature of the respective mail servie providers such as Yahoo, Rediffmail, Hotmail etc. At the receiving end basing mainly on the subject matter and number of mail Addresses you have placed against To / cc / bcc addresses, it will divert to Junk Mail.

Change your subject matter and try again with less number of mail addresses. Remove terms such as code, money, earn etc which are normally used in spam mails.

All the Best

K.B.Narayana Sarma

Re: HOW TO: Send email using System.Net.Mail

anilperugu — Thu, 19 Jul 2007 10:34:54 GMT

Nice one,

but iam getting mail to junk folder what should i do, so that i get mail to inbox?

Re: HOW TO: Send email using System.Net.Mail

anilperugu — Thu, 19 Jul 2007 10:34:45 GMT

Nice one,

but iam getting mail to junk folder what should i do, so that i get mail to inbox

Re: HOW TO: Send email using System.Net.Mail

ojm37 — Wed, 18 Jul 2007 20:44:19 GMT

How do I do this NOT from a web-page (i.e., from a Windows program)? I can't seem to be able to tell how to set up the userName and Password for the smtp server. (Web.config only applies to a web-page....)

Re: HOW TO: Send email using System.Net.Mail

milkdev — Fri, 13 Jul 2007 13:29:34 GMT

Re: HOW TO: Send email using System.Net.Mail

KBNSarma — Fri, 22 Jun 2007 09:03:21 GMT

Try the following code, which I am using:

Private Sub SendMailSMS()

PInfn.SelectCommand = "SELECT Email,Mobile FROM UserID WHERE (UserID = '" & SelOfficer.SelectedItem.Text & "')"

PInfn.DataBind()

Dim mSubject, mTo As String

Dim dv2 As New DetailsView

dv2.DataSource = PInfn

dv2.DataBind()

mSubject = "New Call Generated from " & tPName.Text.ToString & ", " & tCity.Text.ToString & " for visit on " & tCallDt.Text.ToString

mTo = dv2.DataItem("Email")

mBody.Append(mSubject)

mBody.Append(vbCrLf)

mBody.Append("New Call No. " & tEnqNo.Text.ToString & " Generated by " & Session("SUserID"))

mBody.Append(vbCrLf)

mBody.Append("Call for " & HProducts.Value)

mBody.Append(vbCrLf)

mBody.Append("Address = " & tPName.Text & "; " & tStreet.Text.Trim & "; " & tLocation.Text.Trim & "; " & tCity.Text.Trim & "; " & tTerritory.Text.Trim)

mBody.Append(vbCrLf)

mBody.Append("Call Required on " & tCallDt.Text.ToString & " at " & tTime.Text.ToString)

mBody.Append(Session("SUserID"))

Dim MMessage As New MailMessage(Session("SUserEmail"), mTo, mSubject, mBody.ToString)

Dim emailClient As New SmtpClient(". . . . . . .") ' Use your smtp or localhost

If Session("SRemRequest") = "Yes" Then emailClient.Send(MMessage)

End Sub

Regards, KBN Sarma

Re: HOW TO: Send email using System.Net.Mail

mlopilato — Fri, 22 Jun 2007 01:36:00 GMT

StrongTypes,

I have a problem that has me completely baffled---
When the controls that I'm referencing in my MailHelper code are in a FormView Control I get the error:

Compiler Error Message: BC30451: Name 'txtbx_email' is not declared.

Source Error:

Line 24:                                         Protected Sub btn_send_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Line 25: 
Line 26:                                             sender = txtbx_email.Text
Line 27:                                             name = txtbx_name.Text
Line 28:                                             phone = txtbx_phone.Text

<asp:FormView ID="FormView1" runat="server" DataSourceID="SqlDataSource1" AllowPaging="True">
                            <ItemTemplate>
                                <table width="325" style="border-right: black 1px solid; border-top: black 1px solid;
                                    border-left: black 1px solid; border-bottom: black 1px solid;">

                                    <script runat="server" language="vbscript">
    
                                        Dim Sender, bcc, cc, comment1, comment, name, phone, subject As String
                                        Protected Sub btn_send_Click(ByVal sender As Object, ByVal e As System.EventArgs)

                                            sender = txtbx_email.Text
                                            name = txtbx_name.Text
                                            phone = txtbx_phone.Text
                                            comment = txtbx_comment.Text
                                            bcc = ""
                                            cc = ""
                                            subject = hidfld_mls_id.Value
                                            comment1 = "<font face=arial size=3><b>Name: </b>" & name & "<br><b> Phone: </b>" & phone & "<br><b> Comment: </b>" & comment & "</font>"

                                            MailHelper.SendMailMessage(sender, "mike@lope.com", bcc, cc, subject, comment1)
                                        End Sub
                                    </script>

                                    <tr>
                                        <td colspan="2" align="left">
                                            <asp:Label ID="Label6" runat="server" Text="Request More Information" CssClass="content_text_bold_12"></asp:Label>
                                            <asp:HiddenField runat="server" ID="hidfld_mls_id" Value='<%# Eval("mls_listing_id","I am interested in more information regarding MLS# {0}") %>' />
                                        </td>
                                    </tr>
                                    <tr>
                                        <td colspan="2">
                                            <hr width="325" size="2" color="#03024e" />
                                        </td>
                                    </tr>
                                    <tr>
                                        <td colspan="2" align="left">
                                            <asp:Label ID="Label28" runat="server" Text='<%# Eval("s_mlsname","Contact {0} at:") %>'
                                                CssClass="content_text_bold_10"></asp:Label>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td colspan="2" align="left">
                                            <asp:Label ID="Label29" runat="server" Text='<%# Eval("mls_office_phone","{0} or Request more information below:") %>'
                                                CssClass="content_text_bold_10"></asp:Label>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td align="left" width="50">
                                            <asp:Label ID="Label27" runat="server" Text="*Name:" CssClass="content_text"></asp:Label>
                                        </td>
                                        <td align="left" width="150">
                                            <asp:TextBox ID="txtbx_name" runat="server"></asp:TextBox>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td align="left" width="50">
                                            <asp:Label ID="Label31" runat="server" Text="*Email:" CssClass="content_text"></asp:Label>
                                        </td>
                                        <td align="left" width="150">
                                            <asp:TextBox ID="txtbx_email" runat="server"></asp:TextBox>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td align="left" width="50">
                                            <asp:Label ID="Label30" runat="server" Text="Phone #:" CssClass="content_text"></asp:Label>
                                        </td>
                                        <td align="left" width="150">
                                            <asp:TextBox ID="txtbx_phone" runat="server"></asp:TextBox>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td align="left" colspan="2">
                                            <asp:Label ID="Label32" runat="server" Text="How can we assist you?:" CssClass="content_text"></asp:Label>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td align="right" colspan="2">
                                            <asp:TextBox ID="txtbx_comment" runat="server" TextMode="MultiLine" Rows="3" Width="300"></asp:TextBox>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td align="left" width="50">
                                            &nbsp;
                                        </td>
                                        <td align="left" width="150">
                                            <asp:Button ID="Button1" runat="server" Text="Send Info Request" OnClick="btn_send_Click" />
                                        </td>
                                    </tr>
                                </table>
                            </ItemTemplate>
                        </asp:FormView>

If I remove the <asp:FormView> from the page the error is gone and the email form works. Help!

Of course then there isn't any data.

Thanks,

Mike

Re: HOW TO: Send email using System.Net.Mail

nufastian — Wed, 20 Jun 2007 16:43:18 GMT

StrongTypes:
Below is a C# and VB.NET class that demonstrates using System.Net.Mail to send an email.

Download C# System.Net.Mail Helper
Download VB.NET System.Net.Mail Helper

Calling the function from code

MailHelper.SendMailMessage("fromAddress@yourdomain.com", "toAddress@yourdomain.com", "bccAddress@yourdomain.com", "ccAddress@yourdomain.com", "Sample Subject", "Sample body of text for mail message")

MailHelper.cs

using
System.Net.Mail;
public class MailHelper
{
   /// <summary>
   /// Sends an mail message
   /// </summary>
   /// <param name="from">Sender address</param>
   /// <param name="to">Recepient address</param>
   /// <param name="bcc">Bcc recepient</param>
   /// <param name="cc">Cc recepient</param>
   /// <param name="subject">Subject of mail message</param>
   /// <param name="body">Body of mail message</param>
   public static void SendMailMessage(string from, string to, string bcc, string cc, string subject, string body)
   {
      // Instantiate a new instance of MailMessage
      MailMessage mMailMessage = new MailMessage();

      // Set the sender address of the mail message
      mMailMessage.From = new MailAddress(from);
      // Set the recepient address of the mail message
      mMailMessage.To.Add(new MailAddress(to));

      // Check if the bcc value is null or an empty string
      if ((bcc != null) && (bcc != string.Empty))
      {
         // Set the Bcc address of the mail message
         mMailMessage.Bcc.Add(new MailAddress(bcc));
      }

      // Check if the cc value is null or an empty value
      if ((cc != null) && (cc != string.Empty))
      {
         // Set the CC address of the mail message
         mMailMessage.CC.Add(new MailAddress(cc));
      }

      // Set the subject of the mail message
      mMailMessage.Subject = subject;
      // Set the body of the mail message
      mMailMessage.Body = body;

      // Set the format of the mail message body as HTML
      mMailMessage.IsBodyHtml = true;
      // Set the priority of the mail message to normal
      mMailMessage.Priority = MailPriority.Normal;
      // Instantiate a new instance of SmtpClient
      SmtpClient mSmtpClient = new SmtpClient();
      // Send the mail message
      mSmtpClient.Send(mMailMessage);
   }
}

MailHelper.vb

Imports
System.Net.Mail
Public
Class MailHelper
   ''' <summary>
   ''' Sends an mail message
   ''' </summary>
   ''' <param name="from">Sender address</param>
   ''' <param name="recepient">Recepient address</param>
   ''' <param name="bcc">Bcc recepient</param>
   ''' <param name="cc">Cc recepient</param>
   ''' <param name="subject">Subject of mail message</param>
   ''' <param name="body">Body of mail message</param>
   Public Shared Sub SendMailMessage(ByVal from As String, ByVal recepient As String, ByVal bcc As String, ByVal cc As String, ByVal subject As String, ByVal body As String)
      ' Instantiate a new instance of MailMessage
      Dim mMailMessage As New MailMessage()
      ' Set the sender address of the mail message
      mMailMessage.From = New MailAddress(from)
      ' Set the recepient address of the mail message
      mMailMessage.To.Add(New MailAddress(recepient))

      ' Check if the bcc value is nothing or an empty string
      If Not bcc Is Nothing And bcc <> String.Empty Then
         ' Set the Bcc address of the mail message
         mMailMessage.Bcc.Add(New MailAddress(bcc))
      End If

      ' Check if the cc value is nothing or an empty value
      If Not cc Is Nothing And cc <> String.Empty Then
         ' Set the CC address of the mail message
         mMailMessage.CC.Add(New MailAddress(cc))
      End If

      ' Set the subject of the mail message
      mMailMessage.Subject = subject
      ' Set the body of the mail message
      mMailMessage.Body = body

      ' Set the format of the mail message body as HTML
      mMailMessage.IsBodyHtml = True
      ' Set the priority of the mail message to normal
      mMailMessage.Priority = MailPriority.Normal

      ' Instantiate a new instance of SmtpClient
      Dim mSmtpClient As New SmtpClient()
      ' Send the mail message
      mSmtpClient.Send(mMailMessage)
   End Sub
End Class

Web.config

<?
xml version="1.0"?>
<configuration>
   <system.net>
      <mailSettings>
         <smtp from="defaultEmail@yourdomain.com">
            <network host="smtp.yourdomain.com" port="25" userName="yourUserName" password="yourPassword"/>
         </smtp>
      </mailSettings>
   </system.net>
</configuration>

Thanks.

Re: HOW TO: Send email using System.Net.Mail

Sumit Garg — Wed, 20 Jun 2007 06:04:11 GMT

Hey this article is very good one.Because it also consider the reuseablity of code.So it is a nice one.

Thanks for gives such types of comments.