Unchecking the 'send email' option when adding users to a group.
Most of the time we don't want to send extra emails to people so we wanted to uncheck the send email checkbox from the New User form. Here's how: Repeat this process for each front end-web server: Open C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\LAYOUTS\AclInv.aspx Find the control with ID="chkSendEmail" change the Checked="True" attribute of this control to Checked="False". No IISRESET is required