What is a "winmail.dat" file

[Guest]

My Outlook won't "attach" files, only insert them into the body of the
message. Then often the recipient won't get the file, instead they get a
"winmail.dat" file. What's up with this? How can I get Outlook to attach
files instead of insert them?

 

[Lanwench [MVP - Exchange]]

My Outlook won't "attach" files, only insert them into the body of the
message.

Using Word as email editor? Rich Text format?

Then often the recipient won't get the file, instead they

get a "winmail.dat" file. What's up with this? How can I get
Outlook to attach files instead of insert them?

Don't use Rich Text format - use Plain Text or HTML.

 

[neo [mvp outlook]]

Try switching to plain text or html format and consider disabling Word as
your e-mail editor.

 

[_Vanguard_]

My Outlook won't "attach" files, only insert them into the body of the
message. Then often the recipient won't get the file, instead they
get a
"winmail.dat" file. What's up with this? How can I get Outlook to
attach
files instead of insert them?

http://support.microsoft.com/?id=290809

Summary: Do NOT use Rich-Text Format (RTF) when sending messages outside
your Outlook-Exchange organization.