A: Sendy is a entry level frontend for Amazon SES, each copy of Sendy you buy lets you connect only one domain to Amazon SES and deliver a small list, slowly. People love Sendy, I'm definitely not knocking it, they popularized the idea of self-hosting your email marketing software inexpensively at a 10 cent CPM and saving thousands of dollars a year on ESP plans.

By contrast, we give you a full end-to-end email service provider with unlimited domains, contacts, sending volume, and unlimited email delivery connections, with Amazon SES only being one option among many. We can handle very large lists and deliver them in a couple of minutes.

You create a customized email delivery architecture by combining as many or as few email delivery engines as you want, and then connect them to customer accounts.

Customer accounts have access to email marketing software that's on par with the popular SaaS ESPs people are accustomed to using already like ConvertKit or AWeber, and you can resell customer accounts to others or use them all in-house.

Basically, Sendy is a bare bones self-hosted newsletter manager for one domain that's narrowly focused on one specific type of user and use case that has very minimal requirements and is someone primarily looking to save money because they don't need any of the features offered by an ESP targeting SMB/Enterprise.