Often you receive email, from users who use exchange as mail server, with a winmail.dat attachment unreadable by most mail clients. Often to read it the simplest thing is to use the webmail or some software that can open it and interpret it correctly.
The cause of the problem is the format in which exchange sends messages by default that is the Rich Text Format. However, there is an easy solution that, in my opinion, everyone should take…
From the EMC interface you have to go to Organization configuration -> hub transport -> remote domains tab -> Right click on properties of default remote domains; In the tab “Message Format” you have to go to the section “Exchange rich-text format” and select the option “Never use”. In this way, all the emails will be sent in plain text or html without creating problems for recipients.
[…] There is also a third possibility for some: RTF format that only works if the recipient is able to receive it. Otherwise in case of attachments can create tricks. http://www.itxperience.net/exchange-allegati-winmail-dat-e-rtf-format/ […]