I have run into an issue where if I am unchecking a checkbox: 'Let guest users see other members of this community' under general setting in Preferences. If the check box is checked, welcome emails are getting triggered. We unchecked it due to some security issues. But I am not sure what is the relation between this and sending email.
We send the welcome emails using standard "Welcome New Member" functionality of communities.
Do Anyone know whats wrong here.