HyperOffice Email Service is described as 'HyperOffices is a Microsoft Exchange alternative with all the messaging features growing business need - custom business email; Outlook email; shared Outlook contacts, calendars and tasks; web and mobile email; Outlook synchronization; shared calendars, contacts, tasks and' and is an website in the Office & Productivity category. There are more than 10 alternatives to HyperOffice Email Service, not only websites but also apps for a variety of platforms, including Windows, Linux, Self-Hosted solutions and Mac. The best alternative is Google Workspace. It's not free, so if you're looking for a free alternative, you could try Zimbra Collaboration Suite or iRedMail. Other great sites and apps similar to HyperOffice Email Service are Microsoft Exchange Server (Paid), Axigen (Paid), OpenChange (Free, Open Source) and Mercury Mail Transport System (Free Personal).
Atmail allows you to choose between on-premises or cloud deployment. Features include email, contact, calendar, task, storage, synchronisation and provisioning. It's extensible through a RESTful API and allows easy rebranding and white-labelling.
MailShogun is a plugin that creates domain emails easily. You can pick between your professional and regular e-mail address when sending or receiving from your regular g-mail account. One of the cheapest mail forwarding services you can find on the web.
Email With a modern and intuitive interface Chat Real-time Text, Audio & Video chat with file sharing File storage With a document previewer File sharing File and document sharing within the company, privately, or publicly Contacts Personal and company-wide...