Why do I get a type mismatch when trying to access mail items?

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  • Start date Start date
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Guest

Trying to scan through mail messages in Outlook 2003 SP2. The code below
works OK if the messages are in the Inbox but not if they are in a mail
subfolder. I created this code from an earlier macro that worked fine in
Outlook XP. As you can tell from the variable names, most of it came from
Outlook VBA help. I tried declaring 'message' as an Outlook.MailItem but got
error 13 - Type mismatch.

Any ideas?

Dim myOlApp As Outlook.Application
Dim myNameSpace As Outlook.NameSpace
Dim myFolder As Outlook.MAPIFolder
Dim myItems As Outlook.Items
' Dim message as Outlook.MailItem

Set myOlApp = CreateObject("Outlook.Application")
Set myNameSpace = myOlApp.GetNamespace("MAPI")
Set myFolder = myNameSpace.GetDefaultFolder(olFolderInbox)
' Works if next line is commented out
Set myFolder = myFolder.Folders("Mail shot replies")
Set myItems = myFolder.Items

For Each message In myItems
' Next line gives run-time error 438
' "Object doesn't support this property or method"
MsgBox message.SenderEmailAddress, vbOKOnly
Next message
 
Probably because the item raising the error isn't a MailItem. Never assume; always check the Class. Thus:

Dim itm as Object
Dim message as MailItem

For Each itm In myItems
If itm.Class = olMail Then
Set message = itm
MsgBox message.SenderEmailAddress, vbOKOnly
End If
Next

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003

and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
 
A folder can have items other than the regular messages, like non-delivery
reports, meeting invitations, etc.
Declare message as a generic object, then check the if the message.Class
property is 43 before you access any MailItem specific properties.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

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