Mailwarm - The email warm-up tool.
Newton Mail - Newton is a fully featured mail client available for Android, iOS, macOS and Windows.
Warmbox.ai - Warm up your cold email inbox, and never land in spam anymore!
Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Warmup Inbox - Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically.
Spark - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues