Top Email Autoresponder Services Autoresponder software primarily automates the task sending pre-written email messages in response incoming emails, but some let you send scheduled, follow-up email marketing messages and broadcast newsletters. Autoresponder software primarily automates the task sending pre-written email messages in response incoming emails, but some let you send scheduled, follow-up email marketing messages and broadcast newsletters. broadcastemailmarketingmessagessendunlimited in Public bookmarkswith system:unfiledby 6 users