deemg on "[Plugin: WP Mail SMTP] Receiving Cron Debug Mail after installing plugin WP-Mail-SMTP"

Immediately after install the WP-Mail-SMTP plugin I started receiving hourly emails stating "hourly cron executed successfully at:" then the date when it was executed. Deleted the Plugin and still receiving the notifications. Anyone know how to stop this?

http://wordpress.org/extend/plugins/wp-mail-smtp/