Email campaigns, unless personalised sufficiently, are proven to be less effective than highly personalised campaigns. The more information you have about your subscribers, the more personalisation can be applied. This is where More Custom Fields Addon for XYZ Newsletter Manager Wordpress plugin can be put into action.
More Custom Fields Addon for Newsletter Manager lets you collect more information about your subscribers. You may collect information from your subscribers using textarea, checkbox, radio button and multi select form fields. The information collected so can be used for personalising your campaigns to a greater extent.