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I have this user who have a lot of cron jobs and I expected it to log stderr in its /var/mail/user. Sample below cron entry is working as expected in a different server.

* 30 * * * * /usr/local/bin/scripts/test.sh > /dev/null 2>&1

I've compared postfix/main.cf on both servers and cannot find anything different. Is there something else I need to check?

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This is an explicit redirection in the cron command: > /dev/null 2>&1. It means both stdout and stderr are thrown away. There's no basis to expect any mail then. To keep stderr, leave just this redirection at the end: >/dev/null.

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  • Thank you so much this have been very helpful. I overlooked those redirections when comparing from another working system. – Ykaly Jun 25 '19 at 19:08

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