vBulletin cron based email sending is a new feature in vBulletin 4.2 and is enabled by default and configured for only 10 batch emails sends until that queue is cleared. There is an email delay setting which allows you to set the delay between each email sent within a batch to...
Name: George Liu
Online Handle: eva2000
Location: Brisbane, Australia
Occupation: vBulletin.com technical support since 2001