Permission

[Merve Temizer]

I have a line in master.cf

apipe unix - n n - - pipe user=pstfx flags=Rq argv=perl /home/merve/
myscript.pl null_sender= -f ${sender} -- ${recipient}

I see line

dsn=5.3.0, status=bounced (Command died with status 13: "perl". Command
output: Permission denied at /home/merve/myscript.pl line 4. )

in /var/log/mail.log

In my perl code the line 4 is:

open OUTPUT, '>', "output.txt" or die $!;


I tried

chmod 777 /home/merve/output.txt