[Modus] Winmail.dat emails

[Jesse]

Marc,   This isn't a problem with Modus, the problem resides with Microsoft Outlook.  The most comment standards for encoding an attachment are MIME or UUENCODE however Outlook is encoding the message in TNEF which is a format specific to Outlook and Exchange and should only be used when sending to a recipient with Outlook.  Unfortunately it seems that Outlook often sets the default encoding to TNEF.   Look at the message source and you will probably see the following tag in the headers;   X-MS-TNEF-Correlator:   Microsoft says "...for sending messages with regular file attachments, TNEF is not needed. If you are sending e-mail with file attachments to a recipient who does not use Outlook or the Exchange Client, you should manually choose to use a mail format that does not require TNEF (such as plain text). By not sending TNEF messages, the recipient will be able to view and save the attachments as expected." Microsoft also goes on to say:  "When a message containing TNEF information is received by a mail client that does not understand TNEF, there are three common results:" ... "The plain text version of the message is received and the client ignores the Winmail.dat attachment. This is the behavior found in Microsoft Outlook Express. Outlook Express does not understand TNEF, but it does know to ignore TNEF information. The result is a plain text message." To fix this problem, Microsoft suggests the sender do one of the following: "TNEF can be controlled in three places, and is different depending on your installation of Outlook (Internet Mail Only, or Corporate or Workgroup):  1) Global: Changing your default mail format to Plain Text or HTML will help ensure that TNEF is not sent unless an Outlook feature needs it.  2) Per Message: If the message is a Rich Text Format (RTF) message, and you are using the Internet Mail Only (IMO) installation of Outlook, you can turn on or turn off TNEF for one message at a time.  3) Per Recipient: You can specify in the recipient's e-mail address to not send TNEF, so that a recipient always receives plain text versions of the message."   Jesse Chieppa www.pon.net ----- Original Message ----- From: Marc Frega To: [EMAIL PROTECTED] Sent: Saturday, December 06, 2003 8:45 AM Subject: [Modus] Winmail.dat emails * This is the modus mailing list * I know I have come across this in the past but I need to get a good understanding of why this happens. I have a customer who called me this morning complaining about how he cant get pictures in his email from his daughter but other people can. Upon closer examination I saw he had the attachments but they were named winmail.dat. The mails were sent using Microsoft outlook.  What causes this? Should ModusL convert these to the proper format? Marc Dialsoft / Jungle Online ** To unsubscribe, send an Email to: [EMAIL PROTECTED] with the word "UNSUBSCRIBE" in the body or subject line.