There are a few specific options you may be interested in while creating a campaign.
Include some user identities info in subscriptions
Location
Website
Skype
Facebook
Twitter
User name
Allow the campaign shows in register form
Allow guest subscribe: This option allows you to display a popup to guest users and ask them to subscribe to the campaign. You can also customize your popup content
Allow you import group email addresses into specific subscription list.
Manual sync subscription status from Sendy to XenForo
Automatically sync subscription status from Sendy to XenForo