Alternatives to Kerio Connect for all platforms with any license

G Suite

G Suite (formerly Google Apps for Work) is Google's encompassing selection of cloud apps for business, including customizable products under custom domain names. It...

Commercial Mac Windows Linux Web Chrome OS
Google Sheets integration Cloud Storage Apps that Sync with Google Calendar Google contacts integration ... Sync with Google Drive Mobile Device Management Online collaboration Team Collaboration Add a feature

126 Like
Zoho

Zoho is an all-in-one online office suite. Zoho gears itself towards businesses, increasing your productivity and offering easy, real-time collaboration. Zoho offers a...

Commercial $ $ $ Web
Ad-free Custom login portal CRM Encrypted Email ... File transfer Leadfeeder integration Email Server Open API Software as a Service Spreadsheets Wiki Workflow Add a feature

155 Like
Microsoft 365

Microsoft 365 is a subscription-based software services that licenses Microsoft Office products for on-premise or cloud-based use. For consumers, the service allows...

Commercial Web Software as a Service (SaaS)
IFTTT integration Email Server Real time collaboration Web-Based Add a feature

25 Like
hMail Server

hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the...

Free Open Source Windows
Convert images to PDF Support for IMAP Email Server POP3 Support ... SMTP SMTP integration Add a feature

25 Like
Kolab Now

Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.

Commercial $ $ $ Open Source Web Software as a Service (SaaS) DAVdroid
CalDAV CardDAV Cloud Storage Email Server ... Notetaking Real time collaboration Security & Privacy Add a feature

41 Like
Zimbra Collaboration Suite

Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra...

Freemium Open Source Linux Web Self-Hosted
Active Directory integration ActiveSync Email Server Real time collaboration ... Team Collaboration Add a feature

29 Like
Kopano

Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface. Kopano helps you work smarter with people within and outside...

Freemium Open Source Mac Windows Linux Web Android ... iPhone Android Tablet Windows Phone iPad Self-Hosted Microsoft Office Outlook S/MIME Software as a Service (SaaS)
CalDAV File sharing Email Server Mobile Device Management ... On-premises software POP3 Support Real time collaboration Shared calendars Add a feature

27 Like
Axigen

Axigen provides a multi-tenant, fully integrated, multi-platform, all-in-one email, calendaring and collaboration messaging solution. It grants extensive branding...

Commercial Mac Windows Linux BSD Self-Hosted ... Microsoft Office Outlook Software as a Service (SaaS)
Clustering Group collaboration Clustering Support Customizable ... Customizable branding Email Archiving Flexible customizations Shared calendars Api API Integration CalDAV CardDAV Delegated Administration Support for Docker Email Server Multiple languages Real time collaboration Shared folders White-labeled Add a feature

11 Like
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Microsoft Exchange Server

Intelligent inbox and calendar software that's a part of the Microsoft Office Suite.

Commercial Windows Web
Email Server Real time collaboration Add a feature

16 Like
iMail

Fast, safe, heavy mail solution. Web-client access, LAN or WAN self-hosted server, maintenance-free design. No Windows server and database server required, unlimited...

Commercial Windows Self-Hosted
Email Server Add a feature

3 Like