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MS Office Forum / Outlook / Programming VBA / October 2005WINMAIL.DAT
Scenario: I am using COM objects to automate Outlook 2003 in a corporate setting. My program creates a new message, adds SMTP recipient, sets BodyFormat to plain text, adds subject and body, attaches a spreadsheet, and sends message. Problem: Non-Outlook recipient receives WINMAIL.DAT instead of Excel attachment. This also happens when performing the above steps manually using the Outlook 2003 progran itself. More info: I don't have this problem at home, where I have Outlook 2003 internet-only-- the attachment is sent as a spreadsheet and not as WINMAIL.DAT. Solution I cannot use: The user will not make a global setting to set all messgages to use plain text. What I'm considering: I could create a contact and try setting the message format on a 'per recipient' basis. However, I can't find a COM object property for the 'Internet Format' setting that appears in Outlook on the contact properties page. Anyone have a clue why it's so hard to stop WINMAIL.DAT from being sent? What about the contact property I mentioned ('Internet Format') - is there a COM object property for this? Those winmail.dat attachments only occur when non-Outlook clients receive Rich Text messages. So this sounds like you have Convert to Rich Text turned on for the recipient by the setting for their e-mail address in their Contact item. How e-mail message formats affect Internet e-mails in Outlook: http://support.microsoft.com/default.aspx?scid=kb;en-us;290809 This can also be controlled in an Exchange environment; maybe Rich Text is forced here: How to configure Internet e-mail message formats at the user and the domain levels in Exchange Server 2003: http://support.microsoft.com/default.aspx?scid=kb;en-us;821750 If you want to control per-recipient Internet format options with code, you need to use CDO. The options are controlled by the following properties in the Recipient.AddressEntry.Fields collection: Rich Text On: PR_SEND_INTERNET_ENCODING = 0 (PT_LONG) PR_SEND_RICH_INFO = true (PT_BOOLEAN) Plain Text On: PR_SEND_INTERNET_ENCODING = 393216 (PT_LONG_ PR_SEND_RICH_INFO = false (PT_BOOLEAN) There's a good example here, and it even modifies the same property: PRB: Changing Properties of AddressEntry object of a Recipient: http://support.microsoft.com/default.aspx?scid=kb;en-us;171671  SignatureEric Legault (Outlook MVP, MCDBA, old school WOSA MCSD, B.A.) Try Picture Attachments Wizard for Outlook: http://www.collaborativeinnovations.ca Blog: http://blogs.officezealot.com/legault/ > Scenario: I am using COM objects to automate Outlook 2003 in a > corporate setting. My program creates a new message, adds SMTP [quoted text clipped - 21 lines] > What about the contact property I mentioned ('Internet Format') - is > there a COM object property for this? |
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