Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Klaviyo - Klaviyo helps brands own the customer experience, grow higher-value relationships, and deliver more personalized marketing experiences across email, mobile, and web.
Mailu - Mailu is a simple yet full-featured mail server as a set of Docker images.
Criteo - Build, scale, and activate first-party audiences with The Commerce Media Platform.
MailEnable - MailEnable is a Windows based mail server and email server program that is packed with the state of the features and functions like antivirus and spam filtering system, webmail management system, cardDAV, CalDAV and much more.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.