Regain OST Converter Tool - Professional utility to repair or convert offline OST files to Outlook PST file.
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
DocFetcher - DocFetcher is a portable German/English open source desktop search application.
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
Softmagnat EDB to PST Converter - EDB to PST Converter is a utility to convert both offline and online Exchange Server mailboxes edb to PST files. Use Free version to convert emails.
Nylas Mail - The Nylas Cloud API powers your application with email, calendar & contacts features. Built-in features for better email, calendar, and contact management.