bash mail script

Hi, I have the following bash script that I want to use to send email to more than one respondent, and I keep getting an error
"syntax error near unexpected token `mailx' "
Can someone pls tell me what I'm doing wrong?

#!/usr/bin/bash -f

set $all="`cat list`"

for x in $all;

mailx -s "Subject Line Here" $x < mesg;

end

Change:
mailx -s "Subject Line Here" $x < mesg;
To:
cat mesg | mailx -s "Subject Line Here" $x

But this might be even faster (even works from the command line):

cat mesg | mailx -s "Subject line" `cat list`