Saleshandy is a cold email platform that helps organizations increase their email outreach operations without sacrificing quality. On Saleshandy, you can send hundreds (or thousands) of campaigns with multi-stage automated follow-up emails to your leads at once. You can use merge tags to customize your email campaigns and have automated follow-ups delivered based on the previous email's interaction (opens or clicks).
Shortwave - Email smarter & faster with a reinvented experience for your Gmail
Gmelius - Gmelius is the first collaboration platform designed for G Suite and your company's daily tools.
Assistant.to - GoToMeeting. Put your GoToMeeting link in the Assistant. to "Location" field. Once the recipient selects a time, you will both receive an invite with a unique GoToMeeting link.
Mailtrack.io - The best email tracking solution I've found. Free
If No Reply - Simple email automation that works for Gmail
Yesware - Sell smarter with email tracking and more