There are two problems. The first one is that these mail messages usually do NOT have an empty body - they have a body with just the .sig file. If you require an empty body (only blank lines), you will still leave a lot of users disappointed (many don't know how to turn off the signature, or forget). The second problem is that if the 'Subject:' line is present but contains an invalid command (with the actual commands correctly placed in the mail body), the job will be flushed with an error message. It is quite difficult to prevent this from happening if the invalid command was the one in the 'Subject:' field, and even more difficult to remove the error message resulting from finding out that it is invalid. Eric