1)   AnswerTool 2.3.1
Turn answers into assets! Answer your email in minutes instead of hours. AnswerTool saves your answers and lets you reuse them again and again; You will never have to worry about re-typing a response.
email response management, frequently asked question, FAQ, to do list, help desk software, customer support,

 2)   MailManager 2.0
MailManager is the leading Open Source Email Response Management product. It is used by thousands of people in call centers, business and government to help teams deal with large volumes of email to organizational addresses such as info@example.com.
Email Response Management,

 3)   Email Responder 1.41
Save time and money with multi-user automated email response management. Respond to email in seconds! Email Responder analyzes mail, assigns it automatically, and selects the right pre-written templates to personalize replies.
ERMS, email response management, customer service, email template, automated email response, automated email, template, cost reduction, time saving, crm,