elm send mail authority ?

[vikmos]

Greetings, all !

I'm trying to exec pretty simple script to send email like this:
================================================================
sendmail() {
elm -s &quot;$SUBJECT&quot; -a $MAILTO < $BODY -i $ATTFILE >>$LOGFILE
return
}
================================================================

and I can't to get my file sent like Attachment (no problem sending just plain email) getting this as a email from system (att.txt is my target file to send):

============================================================
Your message did not reach some or all of the intended recipients.

Subject: mail from UNIX
Sent: 7/21/2003 12:54 PM

The following recipient(s) could not be reached:

/home/develop/att.txt@regd01.trading.attdevelop.net on 7/21/2003 12:54 PM
You do not have permission to send to this recipient. For assistance, contact your system administrator.
< regd01.trading.attdevelop.net #5.7.1>
============================================================

For assistant i contacted my system adm (smart), but they suggested to put some option in elm, maybe anybody can confirm that it really system authority issue ? Couldn't find any in man for elm about this.

Thanks to everybody.

Vittorio