Advanced Campaign Tracking lets you record and view email opened statistics and url click statistics of your email campaigns. Detailed information such as email fired time and email opened time and url click time are available for each subscriber.
Bounce Mail Handling lets you detect email addresses from which messages got bounced after a campaign was fired. You can manually unsubscribe or delete these bounced addresses or configure the bounce mail handler to automate the same.
More Custom Fields Addon for Newsletter Manager lets you collect more details about your subscribers and personalise your campaigns to a higher level. It provides support for textarea, checkbox, radio button and multi-select fields.