This turns your inbox into a powerful productivity tool. Spike turns your existing emails into chat-like messages, adding tasks, collaborative notes and video meetings to create a single feed for all of your work. You can clean up your inbox by unsubscribing from newsletters.Provide a detail report of your team’s activity.It provides click and download tracking.This tool helps you to integrate it with other messaging tools like Slack and Salesforce. It enables you to create and share customized email templates with your team. Polymail is an email program that provides complete details of how and when people read your emails. It has numerous shortcuts for composing, replying, and forwarding emails.This app provides multi-language support.You can upload your custom notification sound.It helps you to contact via LinkedIn from your inbox.Mailbird allows you to integrate with Facebook, Whatsapp, Dropbox, Google Calendar, etc.This app allows you to customize your layout. It helps you to manage all your emails and contacts with more than one account. Mailbird is a Windows email sending application that can work with Gmail.