MailX

Hi,
I am not able to send direct mails from our unix server to our lotus notes id. It was fine until we upgrade our Lotus notes server. What are the changes need to add when we upgrade Lotus notes. Please advice.
It run in sh file
This is the statement
uuencode $RTDIR/$filename monthly_$filename | mailx -s " Monthly Report " $MAILLIST

Thanks
Rajani