A cron is run every 30 minutes to check on virus database updates via /etc/cron.d/drweb-update, which sends an email every 30 minutes to the plesk server admin. Most of our customers don’t like the behavior.

To resolve, direct the output to /dev/null or to a log file instead if you need to keep a watch on the updates.

1. Edit /etc/cron.d/drweb-update redirecting the output to /dev/null

vi /etc/cron.d/drweb-update

2. Add the following line

*/30 * * * * drweb /opt/drweb/update.pl >/dev/null 2>&1

This would direct all out put from the drweb update script to /dev/null (trash)