Touchbase - Contact Form Builder - Build beautiful contact forms, feedback forms, registration forms and surveys for your website.
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
Web Form SPAM Protection - With this utility you can easily enrypt your html web forms and protect them against SPAM e-mails
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
Google Forms - Simple web forms from Google.
MailClark - The Slack bot for external communications