Hi Sergey, it's Outlook 2007 as well

>What's recipient's mail client?
>
>>
>>Someone might shade some light on this:
>>
>>I have some code that generates a pdf file. When this specific user attaches this file to an email (interactively in outlook),
>> the pdf file is fine when opened by recipients.
>>
>>However when the file is attached to an email problematically, the attachments look fine on the sender's machine
>> (in sent items) but but on the recipient they appear as decoded text in the email body text.
>>
>>They don't have an exchange server, outlook is server and client on the machine.
>>
>>I think MIME settings has to do with it but have no idea what exactly, any help much appreciated.
>>