I am getting this message when I try and send to a user. 501 Badly structured mime attachment. Can anyone shed some light on this. I do notice that the messages that get bounced have stationary. I know some will say "Don't use stationary" I have to them to do that....what I would like to know is what in the stationary causes this. Also some people get the email with no problems and others get this error...so I think it must be something on those peoples email servers or in their system that is sensitive to this.
Thank you,
Mike😕
