Yes, the complication is the same as with a custom form: After an item is modified with custom properties, Outlook transmits that property information in a Winmail.dat file and also wraps any attachments into that file, which only another Outlook client can open. Either add the properties after the item arrives in the Sent Items folder or mark the address of any non-Outlook recipient for plain text only.
--
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
"Kwan Thean Keong" <(E-Mail Removed)> wrote in message news:(E-Mail Removed)...
> Hi,
> I have written some codes in VB whereby it will add UserProperties into
> MailItems the moment it is being opened and set some values into it.
>
> The code example is as below:
>
> Public Function uf_add_properties(arg_mailitem As MailItem) As Long
> Dim l_udf As UserProperty
>
> Set l_udf = arg_mailitem.UserProperties.Add("UDF_1", olYesNo)
> End Function
>
>
> Being successful in adding the userproperties to my mailitem ,
> then i proceed with testing my code by sending an email with a bmp
> attachment to my recipient of Outlook Express. Unfortunately Outlook
> Express recipient could not see my attachment at all.
>
> When i remove my code (which resulted in the UserProperties not being
> added), the attachments issues does not arise.
>
> Is there any complications with sending attachments to Outlook Express
> if we have UserProperties being added into a mail item?
>
> I have being told that Modified Form or One Off Form might have such
> symptoms but since i added the UserProperties through runtime, does it
> still being considered a One Off Form ?
>
> I am using MS Outlook 2000 SP3 (9.0.0.6627) and my mail configuration
> is Internet Mail
>
> Thanks
> Kwan
>