I have multi server setup. 3 servers named mta1, mta2 and mailbox server.

On mailbox server, I have setup a cronjob to backup mailboxes with zmmailbox command? ( it is a foorloop)

After running this cronjob, I need an email to be sent to admin@example.com

No mta is runnig on mailbox server. I have below entrty in my cronjob?

my /etc/cron.d/backup file looks like this.

15 11 * * * root /root/scripts/backup.sh

But, no email is sent since it has no mta is installed.

How can I send this email via mta1 or mta2 server?

Hope to hear from you?