lost attachment for outlook 2007

[Gabe Ruiz (gabriel_ruiz]

An e-mail misteriously dissapeared. Outlook did not report to the user that
an e-mail had an attachment. Yet when you go into the mail server youy can
see the attachment called "winmail.dat" How could this happen and how can we
prevent it from happening again?

 

[Hal Hostetler [MVP P/I]]

Winmail.DAT is created by using Outlook Rich Text format to create messages.
Rich Text is only understood by Outlook, all other email clients either get
no attachment, or a winmail.dat attachment that cannot be opened. When
Outlook opens a Rich Text message, there is no attachment because
winmail.dat contains the rich text formatting information necessary to
display the message. To prevent a winmal.dat attachment, use either Plain
Text or HTML message formats to create messages (the default message format)

http://support.microsoft.com/?kbid=287720
OL2002: Attachments Are Not Visible to Some Recipients When You Use TNEF
http://support.microsoft.com/?kbid=290809
OL2002: How Message Formats Affect Internet Mail
http://support.microsoft.com/?kbid=197064
OL2000: (CW) Winmail.dat Attachments Included in Received Messages
http://support.microsoft.com/?kbid=224817
OL2000: Transport Neutral Encapsulation Format (TNEF) Basics

Decoder programs to read a WINMAIL.DAT file are here:

http://www.slipstick.com/addins/decoders.htm
Decoder Tools

Hal
--
Hal Hostetler, CPBE -- (e-mail address removed)
Senior Engineer/MIS -- MS MVP-Print/Imaging -- WA7BGX
http://www.kvoa.com -- "When News breaks, we fix it!"
KVOA Television, Tucson, AZ. NBC Channel 4
Live at Hot Licks - www.badnewsbluesband.com

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