Develop Reference

How to get an ExchangeUser by email address with Outlook Object Library?

I'm currently doing a meeting finder and for that I want to read people's calendars.
I have this snippet to get the manager from the current user, however I want to get the ExchangeUser by their email adress (not the current user itself).
Outlook.ExchangeUser manager = oApp.Session.CurrentUser.AddressEntry.GetExchangeUser().GetExchangeUserManager();
How can I do that?
Edit:
This is the code that worked for me (not optimized yet):
private static Outlook.Application _oApp;
static void Main(string[] args)
{
_oApp = GetApplicationObject();
if (_oApp == null) {
Console.WriteLine("Unable to connect to a running Outlook instance or create a new one");
return;
}
Outlook.NameSpace oNamespace = _oApp.GetNamespace("MAPI");
try
{
var user1Recipient = GetUserByEmailAddress("user1#example.tld");
var user1 = user1Recipient.AddressEntry.GetExchangeUser();
Console.WriteLine($"{user1.PrimarySmtpAddress}: {user1.Name}");
try
{
Outlook.Folder folder = _oApp.Session.GetSharedDefaultFolder(user1Recipient, Outlook.OlDefaultFolders.olFolderCalendar) as Outlook.Folder;
folder.Display();
}
catch
{
Console.WriteLine($"Could not open {user1.Name}'s calendar!");
}
}
catch (Exception ex)
{
Console.WriteLine($"Error {ex}");
}
finally
{
oNamespace.Logoff();
}
Console.ReadLine();
}
private static Outlook.Recipient GetUserByEmailAddress(string email)
{
Outlook.Recipient recipient = null;
try
{
Outlook._MailItem mailItem = _oApp.CreateItem(Outlook.OlItemType.olMailItem) as Outlook._MailItem;
recipient = mailItem.Recipients.Add(email);
recipient.Resolve();
}
catch (Exception ex)
{
Console.WriteLine("Error: " + ex);
}
return recipient;
}
private static Outlook.Application GetApplicationObject()
{
Outlook.Application oApp = null;
if (Process.GetProcessesByName("OUTLOOK").Any())
{
oApp = Marshal.GetActiveObject("Outlook.Application") as Outlook.Application;
}
else
{
oApp = new Outlook.Application();
Outlook.NameSpace oNamespace = oApp.GetNamespace("MAPI");
oNamespace.Logon("", "", Missing.Value, Missing.Value);
}
return oApp;
}

Could this work for you?
In C#:
public static Outlook.Recipient GetUserByMail(string mailAddress)
{
Outlook.Recipient r = null;
try
{
// TO DO: re-use existing application, if possible
Outlook.Application OL = new Outlook.Application();
Outlook._MailItem mail =
OL.CreateItem(Outlook.OlItemType.olMailItem)
as Outlook._MailItem;
r = mail.Recipients.Add(mailAddress);
r.Resolve();
}
catch (Exception)
{
}
return r;
}
In VBA:
Function GetUserByMail(mailAddress As String) As Recipient
Dim myItem As mailItem
Dim myRecipient As Recipient
On Error GoTo ErrHandler
Set myItem = Application.CreateItem(olMailItem)
Set myRecipient = myItem.recipients.Add(mailAddress)
myItem.recipients.ResolveAll
Set GetUserByMail = myItem.recipients.item(1)
On Error GoTo 0
Exit Function
ErrHandler:
Set GetUserByMail = Nothing
Err.Clear
On Error GoTo 0
End Function

Pass the email address to oApp.Session.CreateRecipient, call Recipient.Resolve, then call Recipient.AddressEntry.GetExchangeUser(). Be prepared to handle nulls and exceptions.

Iterating through Outlook Emails with a specific subject

I am currently working on the below method which iterates through emails in my Inbox, but wonder how to filter them to focus on the ones with static subject such as : nice weather. Following searches I've thought folders.Items.Restrict() could help, however I've got condition is not valid on var fi = folder.Items.Restric("weather"). I've also tried
var fi = folder.Items.Find("[Subject] = weather"), to ensure the condition is valid,... but it ends up with no improvement.
Thanks in advance
static void IterateMessages(Outlook.Folder folder)
{
string[] extensionsArray = {".csv"};
//var fi = folder.Items;
var fi = folder.Items.Restrict("weather");
if (fi != null)
{
foreach (Object item in fi)
{
Outlook.MailItem mi = (Outlook.MailItem)item;
var attachments = mi.Attachments;
if (attachments.Count != 0)
{
if (!Directory.Exists(basePath)
{
Directory.CreateDirectory(basePath);
}
// Loop through each attachment
for (int i = 1; i <= mi.Attachments.Count; i++)
{
Console.WriteLine("Processing: {0}", mi.Attachments[i].FileName);
mi.Attachments[i].SaveAsFile(basePath);
Console.WriteLine("Attachment: {0}" + " Saved to Path", mi.Attachments[i].FileName);
}
}
}
}
}

Your Restrict parameter seems to be in a wrong format. Try this:
var fi = folder.Items.Restrict("#SQL=\"urn:schemas:httpmail:subject\" like '%weather%'";
More information

Sending email from the specified Outlook Account

I am using Outlook2013 which has a number of mailboxes from both exchange and pop servers.(Rob#mydomain.com[default exchange], rob#somethingdifferent.com[POP], support#mydomain.com[exchange])
I am trying to use Outlook automation to send an email using the support#mydomain.com account.
The problem I am having is the below code creates a mail item in the support outbox but the from field is rob#mydomain.com not support#mydomain.com. This stops it from being sent.
I would like to change the from address to support#mydomain.com. I thought that by setting the Sendusingaccount property did this.
Any help is greatly appreciated.
public static string Send_Email_Outlook(string _recipient, string _message, string _subject, string _cc, string _bcc, string accountname)
{
try
{
Microsoft.Office.Interop.Outlook.Application oApp = new Microsoft.Office.Interop.Outlook.Application();
// Get the NameSpace and Logon information.
Microsoft.Office.Interop.Outlook.NameSpace oNS = oApp.GetNamespace("mapi");
// Log on by using a dialog box to choose the profile.
oNS.Logon(Missing.Value, Missing.Value, true, true);
// Create a new mail item.
Microsoft.Office.Interop.Outlook.MailItem oMsg = (Microsoft.Office.Interop.Outlook.MailItem)oApp.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem);
// Set the subject.
oMsg.Subject = _subject;
// Set HTMLBody.
oMsg.HTMLBody = _message;
oMsg.To = _recipient;
oMsg.CC = _cc;
oMsg.BCC = _bcc;
#region Send via another account
if (accountname.Trim().Length != 0)
{
Microsoft.Office.Interop.Outlook.Accounts accounts = oMsg.Session.Accounts;
for (int i = 1; i <= accounts.Count; i++)
{
string accountfound = accounts[i].DisplayName.ToLower();
if (accountname.ToLower() == accountfound)
{
oMsg.SendUsingAccount = accounts[i]; // Send using support account
Microsoft.Office.Interop.Outlook.Recipient recipient = oMsg.Session.CreateRecipient(accountfound);
oMsg.Sender = recipient.AddressEntry;
break;
}
}
}
#endregion
// Send.
(oMsg as Microsoft.Office.Interop.Outlook._MailItem).Send();
// Log off.
oNS.Logoff();
// Clean up.
//oRecip = null;
//oRecips = null;
oMsg = null;
oNS = null;
oApp = null;
}
// Return Error Message
catch (Exception e)
{
return e.Message;
}
// Default return value.
return "";
}

Yes, you can use the SendUsingAccount property to set up the correct account you need to send items from.
public static Outlook.Account GetAccountForEmailAddress(Outlook.Application application, string smtpAddress)
{
// Loop over the Accounts collection of the current Outlook session.
Outlook.Accounts accounts = application.Session.Accounts;
foreach (Outlook.Account account in accounts)
{
// When the e-mail address matches, return the account.
if (account.SmtpAddress == smtpAddress)
{
return account;
}
}
throw new System.Exception(string.Format("No Account with SmtpAddress: {0} exists!", smtpAddress));
}
public static string Send_Email_Outlook(string _recipient, string _message, string _subject, string _cc, string _bcc, string accountname)
{
try
{
Microsoft.Office.Interop.Outlook.Application oApp = new Microsoft.Office.Interop.Outlook.Application();
// Get the NameSpace and Logon information.
Microsoft.Office.Interop.Outlook.NameSpace oNS = oApp.GetNamespace("mapi");
// Log on by using a dialog box to choose the profile.
oNS.Logon(Missing.Value, Missing.Value, true, true);
// Create a new mail item.
Microsoft.Office.Interop.Outlook.MailItem oMsg = (Microsoft.Office.Interop.Outlook.MailItem)oApp.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem);
// Set the subject.
oMsg.Subject = _subject;
// Set HTMLBody.
oMsg.HTMLBody = _message;
oMsg.To = _recipient;
oMsg.CC = _cc;
oMsg.BCC = _bcc;
#region Send via another account
// Retrieve the account that has the specific SMTP address.
Outlook.Account account = GetAccountForEmailAddress(oApp , "support#mydomain.com");
// Use this account to send the e-mail.
oMsg.SendUsingAccount = account;
// Send.
(oMsg as Microsoft.Office.Interop.Outlook._MailItem).Send();
// Log off.
oNS.Logoff();
// Clean up.
//oRecip = null;
//oRecips = null;
oMsg = null;
oNS = null;
oApp = null;
}
// Return Error Message
catch (Exception e)
{
return e.Message;
}
// Default return value.
return "";
}

Enumerating Microsoft Outlook Contacts

I have the following code to enumerate all the email address of my contacts but I am not able to do so with the exception point at this line
Outlook.ContactItem oAppt = (Outlook.ContactItem)oItems;
Could someone help me out so that I can enumerate all the email address of my contacts in Microsoft outlook ?
namespace RetrieveContacts
{
public class Class1
{
public static int Main(string[] args)
{
try
{
Outlook.Application oApp = new Outlook.Application();
Outlook.NameSpace oNS = oApp.GetNamespace("mapi");
Outlook.MAPIFolder oContacts = oNS.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderContacts);
Outlook.Items oItems = oContacts.Items;
Outlook.ContactItem oAppt = (Outlook.ContactItem)oItems;
for (int i = 0; i <= oItems.Count; i++)
{
System.IO.StreamWriter file = new System.IO.StreamWriter("C:\\EmailAddress.txt");
file.WriteLine(oAppt.Email1Address);
file.Close();
}
oNS.Logoff();
oAppt = null;
oItems = null;
oContacts = null;
oNS = null;
oApp = null;
}
catch (Exception e)
{
System.IO.StreamWriter file = new System.IO.StreamWriter("C:\\Exception.txt");
file.WriteLine(e);
file.Close();
}
return 0;
}
}
}

Without knowing Outlook's object model by heart I'd guess that Outlook.Items is a collection of ContactItems and thus cannot directly be cast to a single ContactItem. Other concerns:
You're creating and writing to your file within the loop, so it would get overwritten each time
You need to validate that the item is a ContactItem or your cast will throw an error.
the file access should be in a using block so it gets closed automatically if an Exception is thrown
Your for loop is going from 0 to Count when it should be going from 0 to Count-1 if the collection is 0-based
Try changing your loop to something like this:
Outlook.Items oItems = oContacts.Items;
using(System.IO.StreamWriter file = new System.IO.StreamWriter("C:\\EmailAddress.txt"))
{
for (int i = 0; i < oItems.Count; i++) // Note < instead of <=
{
// Will be null if oItems[i] is not a ContactItem
Outlook.ContactItem oAppt = oItems[i] as Outlook.ContactItem;
if(oAppt != null)
file.WriteLine(oAppt.Email1Address);
}
}
file.Close();
oNS.Logoff();

Cant differentiate between MailItem and MeetingItem in NewMailEx

I am developing an addin using c#. I am able to receive notifications whenever i get any item in my inbox.
this.Application.NewMailEx += new Outlook.ApplicationEvents_11_NewMailExEventHandler(olApp_NewMail);
private void olApp_NewMail(String itemCollection)
{
string [] strNewItems;
strNewItems = itemCollection.Split(',');
foreach (string newItem in strNewItems)
{
Outlook.MailItem mail = (Outlook.MailItem)Application.Session.GetItemFromID(newItem, Type.Missing);
string old_subj = mail.Subject;
string old_body = mail.Body;
MessageBox.Show(old_subj);
}
}
but the problem is in the event handler i am not able to distinguish whether it is mail item or meeting item. How should i do it?
thanks in advance.
Regards,
Jeeva

Can you not do something like:
object item = Application.Session.GetItemFromID(newItem, Type.Missing);
Outlook.MailItem mailItem = item as Outlook.MailItem;
if (mailItem != null)
{
...
}
else
{
Outlook.MeetingItem meetingItem = item as Outlook.MeetingItem;
if (meetingItem != null)
{
...
}
}