Scenario Essential

Scenario Essential#

This scenario involves the presence of a single tenant and it is suitable for small infrastructures up to thousands of accounts that do not need the full spectrum of Carbonio features. The scenario can be deployed either using the Ansible Playbook, or manually, Node by Node. In both cases, make sure you configure the internal network.

The Roles installed on the 3 Nodes, depicted below, are:

  • Node 1: Mesh and Directory, Database, Monitoring

  • Node 2: MTA AV/AS, Proxy

  • Node 3: Mailstore & Provisioning

../../_images/scenario-essential.png

Fig. 4 Sample diagram of the Essential scenario.#

Requirements#

The Hardware Requirements for each of the three Nodes are the following

Node Requirements
  • 8 vCPU

  • 24 GB memory

  • 50 GB disk space for the OS

MTA/Proxy

Besides the requirement above, you need to calculate additional disk space for the users e-mails, taking into account the quota. Purely as an example, if you have 150 users, each with a quota of 5GB, you need to have at least 800GB of disk space, 50GB for the OS and at 750 for user’s total quota.

Other software requirements are common to the other installation scenarios and can be found in Section Additional Requirements

Network Configuration#

The following ports must be opened on the external network, i.e., they are required for proper access to Carbonio from the Internet.

Table 3 Opened ports in Scenario Essential.#

Public hostname

Ports & Service

Mapping

mail.example.com

  • TCP 25/465/587 SMTP/S

  • TCP 80/443 HTTP/S

  • TCP 143/993 IMAP/S

  • TCP 110/995 POP/S

  • TCP 8636 LDAP Addresbook

srv2.example.com