How to run command in /etc/aliases when recieving mail ?

Solution Verified - Updated -

Issue

I configured /etc/aliases file as below.

# vim /etc/aliases
test: "| /tmp/test.sh"

When I send mail to test user, there is a error.

Dec 21 01:19:55 localhost postfix/local[3081]: 7CB8E1FD: to=<test@test.com>, relay=local, delay=406, delays=406/0.01/0/0.02, dsn=4.3.0, status=deferred (temporary failure. Command output: local: fatal: execvp /tmp/test.sh: Permission denied )

But the permission is 777. Why permission denied?

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

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