Hi,

 First, thank you for this nice tutorial.

AFAIC, I prefer adding "delaycompress" option to logrotate stanza so that I always have yesterday logs readable as is and, so, don't have to gunzip and gzip back *.log.0 files.

BTW, rather than modifying /etc/logrotate.conf, I suggest to create a dedicated file in /etc/logrotate.d/, like /etc/logrotate.d/mail with the following content

/var/log/mail.log {
    missingok
    daily
    rotate 7
    create
    compress
    delaycompress
    start 0
}

Finally, instead of editing the crontab, I prefer creating a symlink to the script, in this case, in /etc/cron.daily; or if you want a custom schedule, create an /etc/cron.d/pflogsumm file.

 Thank you again

Bests

Tarax