I monitor an email group using Outlook 2000 for applcation support here at the office. Sometimes when I respond to an email that was sent by another user, and also replay to the group server, the main group server rejects it and says I am not sending plain text. I do have Outlook set to send pain text. Under "Options" "Mail Format" I have "plain text" selected. When this happens it is when I am responding to an email that someone else has sent to the group. His email was accepted by the server so it was obviously "Plain text", but something is happening when I reply to it that adds something to convert it from plain text, or at least the email server thinks it is no longer plain text. (This is a private group, and not a Yahoo group or such as that). Does anyone have a clue as to what might be happening here?