Mailivery - Reach the Inbox, not the spam folder.

DelivApp - Software for managing online ordering, delivery and loyalty for multi-unit restaurants

Sidemail - The simplest way to send transactional emails. Sidemail makes sending transactional emails trivial, it's perfect for side projects, MVPs or the next big thing.

Shoedazzle - Shoedazzle is an American web-based fashion subscription service that debuts a select of shoes, handbags, jewelry, etc.

Postal - Open source mail delivery platform, alternative to Mailgun or Sendgrid

PackageX Receive - PackageX Receive digitizes package-receiving operations and delivers world-class package management solutions.