If - for example - cron jobs output to stdout, which is the process collecting the output and writing to these directories ?
/var/spool/clientmqueue /var/spool/mqueue /var/spool/mail
Where can I find docs on the inner details (pipe, rpc, ...) of the "redirection" from stdout to mail files ?
If I send an email whith sendmail, does it do the same routing as above ? docs ?