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I run a mailcow server. I am able to send mail using s-nail from the terminal. I'd like to tell mdadm to just use that when sending email alerts, but when I run mdadm --monitor --scan --test -1, it gives me this.

sendmail: fatal: open /etc/postfix/main.cf: No such file or directory

It seems silly to install postfix just for this. If I do, I'll need to make sure it doesn't interfere with mailcow's postfix, right? Anyway, I'd love some opinions. What's the best course of action?

Giant Frog
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  • To me it looks like this is a sendmail issue, not an mdadm issue. – Gerald Schneider Aug 04 '20 at 08:00
  • Yes, I don't use sendmail for anything, I use s-nail. Was hoping I could get mdadm to do so as well before I dive into installing more software and combing through more config files. – Giant Frog Aug 04 '20 at 15:57
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    mdadm is calling a binary called `sendmail`. This binary can be provided by various packages. Check which package it belongs (how to do that depends on your distribution, google it) to and configure it properly. – Gerald Schneider Aug 04 '20 at 16:00

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