How can I automate the sending of emails? Say, for instance, sending a welcome email or scheduling emails to be sent to leads.

How can I automate the sending of emails? Say, for instance, sending a welcome email or scheduling emails to be sent to leads.

You can both automate and schedule the sending of emails using workflow automation. You can create a workflow rule for the leads module and choose to trigger an email when the lead has been created. Learn more about creating workflow rules here.