How can I make an alias expand to a list of recipients returned by a command?

Posted by Frerich Raabe on Server Fault See other posts from Server Fault or by Frerich Raabe
Published on 2012-10-08T08:55:39Z Indexed on 2012/10/08 9:38 UTC
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email

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freebsd

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exim

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alias

I have an rarely used /etc/aliases entry

vmailusers: :include:/usr/local/etc/vmailusers

The /usr/local/etc/vmailusers file is generated by a cronjob executing

ls /home/vmail | grep -v lists > /usr/locale/etc/vmailusers
chmod 0640 /usr/local/etc/vmailusers
chmod mailnull:mail /usr/local/etc/vmailusers

Is there a way to avoid having to run a cron job but rather execute the ls command in the very moment the vmailusers alias is used?

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