
An antivirus extension is available for another $2 per user, and an ActiveSync extension is available for $3.50 per user.

There is an additional fee of $2 per user for the optional anti-spam extension. Pricing for Kerio Connect ( ) ranges from $29.50 per user to $36.50 per user, depending on the number of licenses purchased. The largest number of users covered by a Kerio Connect licensing plan (excluding GFI Unlimited plans) is 2999 users. Perhaps more telling is the fact that Kerio Connect has a licensing plan that supports as few as ten users. It offers many of the same features as Exchange Server 2019, but tends to be easier to use. Kerio Connect is specifically designed for the SMB market. Microsoft does offer a Standard Edition of Exchange Server that is targeted toward non-enterprise class organizations, but its cost and complexity might be a deterrent to adoption by SMB class organizations. Microsoft Exchange Server can theoretically be used for any sized organization, although it is most often described as an enterprise grade mail platform. This article examines the similarities and differences between these two platforms. Two of the leading platforms available today are Microsoft Exchange Server 2019 and Kerio Connect from GFI Software.

Organizations wishing to operate their own mail servers have a number of different mail server platforms that they can choose between.
