Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates

ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.

Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.

Make.com - Tool for workflow automation (Former Integromat)

Nylas Mail - The Nylas Cloud API powers your application with email, calendar & contacts features. Built-in features for better email, calendar, and contact management.

Microsoft Power Automate - Microsoft Power Automate is an automation platform that integrates DPA, RPA, and process mining. It lets you automate your organization at scale using low-code and AI.