OpenSMTPD vs Zimbra Collaboration Suite
A side-by-side look at OpenSMTPD and Zimbra Collaboration Suite. For an in-depth review of either product, follow the links below.
OpenSMTPD
Network & Admin
OpenSMTPD is an open source SMTP server daemon for Linux and BSD operating systems. It aims to be a free, secure, and featureful SMTP server for both hosting providers and end users.
smtpmail-serveremaillinuxbsdopen-source
Zimbra Collaboration Suite
Office & Productivity
Zimbra Collaboration Suite is an open source email and collaboration platform. It includes email, contacts, calendar, document management, and other collaboration tools. Zimbra is designed for enterprises and service providers.
emailcalendarcontactscollaborationopen-source
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