Mailjet is a transactional and marketing email software that makes email creation and delivery easy and fast. It has an advanced email builder that you can use to create responsive emails in just minutes.
The contact management module lets you segment and understand your audience so that you can target them with the right content for each campaign.
Mailjet uses Passport editor to help you quickly create emails that render properly on all user devices. You have a library of templates and all you have to do is drag and drop.
Companies that need more technical email delivery systems can implement the API. It works with several programming languages.