Ubuntu

cron does not send mail in 16.04

Asked by Tommy Pollák

A cron job started each evening to back-up my system did always send an email before Ubuntu 16.04. After installation of 16.04 no mail is sent.

Why?

How can I debug this problem in order to solve it.

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Launchpad Janitor (janitor) said : 		#1

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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Dirk Seidel (dseidel) said : 		#2

I had the same problem. It seems that the postfix configuration got messed up. Try the following:
apt-get purge postfix
apt-get install postfix

This solved the problem for me. I also tried
dpkg-reconfigure postfix
but that didn't work.

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Tommy Pollák (tpollak) said : 		#3

Thanks Dirk. Reinstalling and then configuring postfix solved the problem.