little green plane integrates with an industry standard spam checker called Spam Assassin. To maximise the delivery of your emails, simply run it through the spam checker to see if there are any elements that may prevent the email ending up in your recipient's inbox. The spam checker will score your email highlighting any areas that require attention before your hit send.

You will receive a spam complaint with little green plane if one of your subscribers has reported receiving an unwanted email, otherwise known as ‘abuse’ in their inbox.

The most common method of avoiding spam is by using a technique called a double opt-in. Before using a fish bowl of business cards to send your emails to, send a campaign asking the owners of those cards to opt-in to your newsletter list. Using a double opt-in will considerably reduce the spam complaint problem.

Also, if someone unsubscribes, make sure you do not email them. Using the automatic unsubscribe facilities offered by the standard i.send footer means all unsubscribes will be permanently removed from future campaigns.