I am runing 2.1 and continue to have trouble with not being able to send attachments. My Outlook is set to plain text. I have the first setting under 'Content Filtering' set to 'No'. I have also added to the 'pass mime types' filter (though it should not be necessary).

application/msword application/pdf application/vnd.ms-excel

I have the last setting set for 'forward to list-owner'.

Posts that I send with an attachment just disappears....

Any thoughts?