To display the top 25 mailboxes by size type the following in the terminal
cd /var/qmail/mailnames du -hs --block-size=1024K */* | sort -nr | head -25
To get the same results emailed to yourself run the following in a script, add it to cron for scheduled emails.
cd /var/qmail/mailnames du -hs --block-size=1024K */* | sort -nr | head -25 | mail -s 'Top 25 Mailboxes by Size' your@email.co.uk
Thanks to http://www.mikcx.com
