Winmail.dat attachments: Difference between revisions
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===Disabling TNEF in Outlook=== | ===Disabling TNEF in Outlook=== | ||
The sender can avoid sending a winmail.dat file by turning off TNEF in Outlook. | The sender can avoid sending a winmail.dat file by turning off TNEF in Outlook. When Outlook is configured to send e-mail in "Rich Text Format", it uses TNEF. When it sends in "HTML" or "Plain Text", it uses standard, compatible formats. | ||
In at least Outlook 2002 (a.k.a. Outlook XP) and Outlook 2003, if it's being used at a business, the following is recommended to ensure compatibility with corporate mail systems: | In at least Outlook 2002 (a.k.a. Outlook XP) and Outlook 2003, if it's being used at a business, the following is recommended to ensure compatibility with corporate mail systems: | ||
#On the "Tools" menu, click "Options", then click the "Mail Format" tab, and then the "Internet Format" button. | #On the "Tools" menu, click "Options", then click the "Mail Format" tab, and then the "Internet Format" button. | ||
#Set "When sending Outlook Rich Text messages to Internet ..." to either "Convert to HTML format" or "Convert to Plain Text format". | #Set "When sending Outlook Rich Text messages to Internet ..." to either "Convert to HTML format" or "Convert to Plain Text format". | ||
In all versions of Outlook, you can disable TNEF completely: | In all versions of Outlook, you can disable TNEF completely: | ||
Revision as of 03:45, 7 March 2006
- This article was written for Thunderbird but also applies to Mozilla Suite / SeaMonkey (though some menu sequences may differ).
Outlook uses the Transport Neutral Encapsulation Format (TNEF) to send messages with Rich Text Format (RTF) formatting. If your e-mail client doesn't support TNEF (most don't) you may also recieve a winmail.dat or a "Part 1.2" attachment. Sometimes you may receive an attachment with a generic name such as ATT00008.dat or ATT00005.eml instead. You can configure Thunderbird to use one of the programs below to open the application/ms-tnef attachment.
- Fentun Win9X, NT, and Win2K but not Windows XP
- AkeeSoft WMViewer Windows 95X though Windows Server 2003
- Winmail Opener Windows 95X though Windows Server 2003
- TNEF Linux
- TNEF's Enough OS9 and OSX
Note that AVG (a anti-virus program) can also add a "Part 1.2" attachment that contains the same information about the message having been scanned for viruses that it adds to end of the message body.
Disabling TNEF in Outlook
The sender can avoid sending a winmail.dat file by turning off TNEF in Outlook. When Outlook is configured to send e-mail in "Rich Text Format", it uses TNEF. When it sends in "HTML" or "Plain Text", it uses standard, compatible formats.
In at least Outlook 2002 (a.k.a. Outlook XP) and Outlook 2003, if it's being used at a business, the following is recommended to ensure compatibility with corporate mail systems:
- On the "Tools" menu, click "Options", then click the "Mail Format" tab, and then the "Internet Format" button.
- Set "When sending Outlook Rich Text messages to Internet ..." to either "Convert to HTML format" or "Convert to Plain Text format".
In all versions of Outlook, you can disable TNEF completely:
- On the "Tools" menu, click "Options", and then click the "Mail Format" tab.
- In the "Send in this message format" list, click "Plain Text" or "HTML", and then click "OK".
