zgrep -h "sasl_username=" /var/log/maillog* \
| sed -n 's/.*sasl_username=\([^ ,]*\).*/\1/p' \
| sort | uniq -c | sort -nr | head -5grep -RIl --binary-files=without-match -m1 -E '^Subject: WordPress Updates Digest$' cur/grep -RIl --binary-files=without-match -m1 -E 'WordPress\=20Updates\=20Digest' -r . | xargs -r rm -fdoveadm index -u some@email.com Inbox