Receiving Winmail.dat files in Outlook 2007

[DwarfData]

Hi,

We're currently using Exchange Server 2007 as our mail server & Outlook 2007
/ Outlook Web Access 2007 as our email client.

Occasionally, one of users will receive an email from an external user with
an attachment as a winmail.dat file. The winmail.dat files is (apparently)
created when an email is created using Outlook as the email client. The file
allows Outlook users to send Transport Neutral Encapsulation Format (TNEF)
information along with the email so that it retains the look and feel of the
document with formatting, fonts and colors when its received by another
Microsoft Outlook user.

So why would our users, who are all using Outlook receiving winmail.dat
files rather then the original attachments. We know that the files are
legitimate & that they contain no virus/trojens.

Any help would be appreciated.

 

[Diane Poremsky [MVP]]

Somewhere along the line the sender's message is getting munged. It could be
their mail server, their AV scanner, your server, or your AV scanner. Does
it happen to all mail from the sender?

--
Diane Poremsky [MVP - Outlook]





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[DwarfData]

Thanks Diane,

From other sources I've been told that it could possily be our firewall/av
solution modifying the mail header such that Outlook no longer recognises it.
However, I've since discovered that several emails that are being received by
one particular user are showing winmail.dat files, whereas another user who
is also a recipient for the same email is receiving the email correctly
within Outlook, which to me points that it must be something local on the
users machine. However, these are both fairly recent rebuilds with the same
Office 2007 installation & McAffe AV solution.

Somewhere along the line the sender's message is getting munged. It could be
their mail server, their AV scanner, your server, or your AV scanner. Does
it happen to all mail from the sender?

--
Diane Poremsky [MVP - Outlook]





EMO - a weekly newsletter about Outlook and Exchange:
(e-mail address removed)

You can access this newsgroup by visiting
http://www.microsoft.com/office/community/en-us/default.mspx or point your
newsreader to msnews.microsoft.com.

Hi,

We're currently using Exchange Server 2007 as our mail server & Outlook
2007
/ Outlook Web Access 2007 as our email client.

Occasionally, one of users will receive an email from an external user
with
an attachment as a winmail.dat file. The winmail.dat files is (apparently)
created when an email is created using Outlook as the email client. The
file
allows Outlook users to send Transport Neutral Encapsulation Format (TNEF)
information along with the email so that it retains the look and feel of
the
document with formatting, fonts and colors when its received by another
Microsoft Outlook user.

So why would our users, who are all using Outlook receiving winmail.dat
files rather then the original attachments. We know that the files are
legitimate & that they contain no virus/trojens.

Any help would be appreciated.