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abel
Guest
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Hello,
I've created an addin for Outlook. When the user clicks one of the buttons, the selected mail (Outlook.MailItem) is added as an attachment to a new mail. That works fine.
Some users have asked me if they can do this with a recieved delivery notification / delivery receipt. Of course Outlook.MailItem does not work here.
So, is there a way to do this? I searched but only found information about adding a delivery notification / delivery receipt to a new mail. But I need to interact with a recieved item from a mail I sent before.
I have simplified my code and posted it below if you want to know exactly what I did in my method. :)
Thank you. Best regards.
private void SendMailAsAttachment()
{
Outlook.Attachments attachments = null;
Outlook.NameSpace nSpace = null;
Outlook.MAPIFolder targetFolder = null;
Outlook.Items folderItems = null;
Outlook.MailItem newMailItem = null;
Outlook.MailItem mailAttachment = null;
List<Outlook.MailItem> list_mailAttachments = new List<Outlook.MailItem>();
try
{
if (OutlookApp != null)
{
nSpace = OutlookApp.GetNamespace("MAPI");
targetFolder = nSpace.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);
folderItems = targetFolder.Items;
newMailItem = folderItems.Add(Outlook.OlItemType.olMailItem) as Outlook.MailItem;
if (OutlookApp.ActiveExplorer() != null)
{
Outlook._Explorer explorer = OutlookApp.ActiveExplorer();
int iCountSelected = explorer.Selection.Count;
for (int i = 1; i <= iCountSelected; i++)
{
mailAttachment = explorer.Selection[i] as Outlook.MailItem;
if (mailAttachment != null)
{
list_mailAttachments.Add(mailAttachment);
}
mailAttachment = null;
}
}
newMailItem.Subject = "any subject";
newMailItem.Recipients.Add("anyname@company.tld");
newMailItem.HTMLBody = "any mailtext";
attachments = newMailItem.Attachments;
foreach (Outlook.MailItem item in list_mailAttachments)
{
attachments.Add(item, Outlook.OlAttachmentType.olEmbeddeditem, 1, item.Subject.ToString());
}
newMailItem.Save();
newMailItem.Display(false);
}
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
}
finally
{
if (attachments != null) Marshal.ReleaseComObject(attachments);
if (nSpace != null) Marshal.ReleaseComObject(nSpace);
if (targetFolder != null) Marshal.ReleaseComObject(targetFolder);
if (folderItems != null) Marshal.ReleaseComObject(folderItems);
if (newMailItem != null) Marshal.ReleaseComObject(newMailItem);
if (mailAttachment != null) Marshal.ReleaseComObject(mailAttachment);
}
}
What I forgot to tell you: I already tried this: I made a List<object> (instead of List<Outlook.MailItem>) and added every selected object to this list (during the loop for (int i = 1; i <= iCountSelected; i++)
). But is there a way to check if this object is a delivery notification / delivery receipt? |
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Andrei Smolin
Add-in Express team
Posts: 18829
Joined: 2006-05-11
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abel writes:
delivery notification / delivery receipt
To request a delivery receipt, set MailItem.OriginatorDeliveryReportRequested = true; see https://docs.microsoft.com/en-us/office/vba/api/outlook.mailitem.originatordeliveryreportrequested.
To request a read receipt (read notification), set MailItem.ReadReceiptRequested = true; see https://docs.microsoft.com/en-us/office/vba/api/outlook.mailitem.readreceiptrequested.
To handle receipts when they are selected or opened, you need to know that they are of the Outlook.ReportItem type.
On another note. "if (OutlookApp.ActiveExplorer() != null)" creates a COM object that you need to release.
Your code calls explorer.Selection twice: explorer.Selection.Count and explorer.Selection[i]. Each of the calls creates a separate COM object; I suggest that you create that COM object once and release it after use. Also, be aware that Explorer.Selection may produce an exception when in certain folders such as RSS Feeds; the list of such folders depends on the Outlook version used.
Pay attention: If the user selects e.g. a ReportItem, "explorer.Selection[i] as Outlook.MailItem" will leave that ReportItem unreleased.
newMailItem.Recipients and Recipients.Add create two COM objects.
attachments.Add() returns a COM object that you need to release.
Make sure that you release every MailItem in list_mailAttachments after use.
Andrei Smolin
Add-in Express Team Leader |
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abel
Guest
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Hello Andrei,
thank you very much for your quick response. Outlook.ReportItem is exactly what I need.
Your other advices are also very helpful. I see that I have to change a lot of code then (in the whole project).
Best regards |
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Andrei Smolin
Add-in Express team
Posts: 18829
Joined: 2006-05-11
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You are welcome!
Andrei Smolin
Add-in Express Team Leader |
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