VMware Workstation (from v 10) (which is currently called VMware Workstation Pro)
CITRIX XEN Server (from Version 7.1) (or XCP-NG 82)
Hyper-V (from Windows 2016)
KVM / Proxmox (Hard Disk with SCSI as Bus/Device and VirtIO SCSI as SCSI Controller and activated Qemu Agent)
Nutanix AHV (as of 2034 SP1 with hotfix 09-3723, Nutanix Guest Tools are available).
Virtual Box
Microsoft Azure (requires the appliance to be installed on local hyper-v and then uploaded to your azure cloud, marketplace is not yet supported, but work is in progress)
The following table includes a list of recommended RAM depending on the amount of users.
Amount of Users
Recommended RAM *
50
4 GB / 4096 MB
100
5 GB / 5120 MB
250
6 GB / 6144 MB
500
7 GB / 7168 MB
750
8 GB / 8192 MB
1000
9 GB / 9216 MB
1500
10 GB / 10240 MB
2500
12 GB / 12288 MB
5000
14 GB / 14336 MB
7500
18 GB / 18432 MB
15000
26 GB / 26624 MB
* The listed RAM is only a minimum requirement.
Depending on the amount of E-Mails, it is recommended to increase the RAM with another 2 GB / 2048 MB.
This is recommended, when for example the REDDOXX Appliance has to process many and / or huge E-Mails in a short time.
Following prerequisites need to be observed prior to the implementation of a new virtual appliance.
In case that the virtual appliance is setup as a secondary node in a cluster, you should read the cluster documentation first.
The documentation can be found here: Cluster Requirements.