How to send a mail using Microsoft.Office.Interop.Outlook.MailItem by specifying the From Address

Question

I'm using Interop for sending e-mails via Outlook, but I am not able to specify the From e-mail address.

I want to send mails to multiple users originating from the same sender (from). I need to mention the from e-mail address. However I cannot find a property using Intellisense that allows me to specify it.

Please help.

Microsoft.Office.Interop.Outlook.Application olkApp1 = 
    new Microsoft.Office.Interop.Outlook.Application();
Microsoft.Office.Interop.Outlook.MailItem olkMail1 =
    (MailItem)olkApp1.CreateItem(OlItemType.olMailItem);
        olkMail1.To = txtpsnum.Text;
        olkMail1.CC = "";
        olkMail1.Subject = "Assignment note";
        olkMail1.Body = "Assignment note";
        olkMail1.Attachments.Add(AssignNoteFilePath, 
            Microsoft.Office.Interop.Outlook.OlAttachmentType.olByValue, 1, 
                "Assignment_note");
olkMail1.Save();
//olkMail.Send();

ruhil · Answer 1 · 2012-06-27T10:59:58.317

14

You are using outlook to send the mail. Since outlook must be configured to use the from address of your mail, you cannot provide the from address directly. However, you can select an account available on outlook. For example :

using Outlook = Microsoft.Office.Interop.Outlook;

Outlook.Accounts accounts = olkApp1.Session.Accounts;
foreach (Outlook.Account account in accounts)
{
    // When the e-mail address matches, send the mail.
    if (account.SmtpAddress == "from@mail.com")
    {
            olkMail1.SendUsingAccount = account;
            ((Outlook._MailItem)olkMail1).Send();
            break;
    }
}

edited Jun 27 '12 at 10:59

answered Jun 27 '12 at 10:52

ruhil

151
2
5

1

Thank you for including the using portion of this. Took me forever to find that. I'm not sure how developers normally know what 'using' stuff they need to include? – Eric Mar 08 '16 at 18:32
@Eric You can code the using {} block for any class that implements IDisposable. When the using block ends, the variable defined in it is automatically disposed. – j2associates Mar 05 '18 at 15:59
@j2associates I think they meant the namespace/alias "using" – Brendan Cain Apr 11 '18 at 17:50

score 7 · Answer 2 · answered Jun 27 '12 at 10:45

7

The Send method sends the mail using the default account. To specify a different account to send the mail, set the SendUsingAccount property to the desired Account prior to calling the Send method.

var application = new Application();
var mail = (_MailItem) application.CreateItem(OlItemType.olMailItem);
mail.To = "anonymous@somedomain.com";
....
Outlook.Account account = Application.Session.Accounts["MyOtherAccount"];
mailItem.SendUsingAccount = account;
mail.Send();

More information can be found here:

http://msdn.microsoft.com/en-us/library/ff184652.aspx

answered Jun 27 '12 at 10:45

Christophe Geers

8,564
3
37
53

How can I create my mail, and open it? (like a mailto?). Save put the mail in non send mail, but can we have a window with the new create mail? – provençal le breton Jul 04 '13 at 07:39
2

@Zaphod: use `mail.Display(false)` to display email as a non-modal window. – Roman Boiko Oct 18 '13 at 10:07
@RomanD.Boiko :thanks for your comment, that's what i was searching for. – provençal le breton Oct 21 '13 at 07:23

How to send a mail using Microsoft.Office.Interop.Outlook.MailItem by specifying the From Address

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