Editing Training 2022 Linux team/ (section)

==Training session on Carbonio Internal Presentation - Tetra Support Staff - Biswajit Banerjee==

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'''Video summary:''' "Carbonio Internal Presentation" -- a strategic internal presentation introducing Carbonio as Tetra's planned successor to Zimbra Open Source. Sets the business context up front: Zimbra Open Source is effectively end-of-life -- no further binary updates/upgrades are expected from Zimbra, and even where upgrades were technically possible they're no longer straightforward the way they used to be -- so an alternative open-source mail platform is needed. Explains why Carbonio specifically over other open-source alternatives (Group-Office, iRedMail-type platforms mentioned as considered but passed over): Carbonio is built by Zextras, a company that has long built commercial add-ons and enhancements for Zimbra itself (mobile sync, backup tooling, etc. for the open-source edition), so its architecture, CLI (a `zextras`-equivalent to `zmprov`), and overall feel are intentionally very close to Zimbra, minimizing the relearning curve. Notes Carbonio's community edition (CE) comes with a 5-year open-source commitment from Zextras, distinguishing it from a purely commercial-only product, and that after evaluation the platform is judged stable enough to start onboarding real customers, with a concrete plan to migrate Tetra's own Zimbra mail onto Carbonio within about two weeks as an internal pilot, working with the service team through that migration for hands-on familiarity. The bulk of the session is a live demo comparing feature-by-feature against Zimbra: the admin console runs on a different port (6071) with a default `zextras`-named admin account rather than Zimbra's `admin`, but otherwise closely mirrors Zimbra's admin structure -- account creation, domains, Class of Service, global address books, LDAP-based authentication (with the same external LDAP/AD integration options used on real client environments like GSTN), per-user/group mailbox quotas, and a genuinely new capability: a built-in disclaimer/footer editor in the admin UI itself, versus Zimbra where this required CLI work. Covers resource booking (shared meeting rooms/projectors), multi-server architecture support (relevant since most of Tetra's open-source Zimbra deployments are single-server, unlike commercial multi-server setups such as ISGEC's separate MTA/mailbox/LDAP split), storage/data-volume management, and an MTA-monitoring panel (queues, spam/antivirus status, TLS config) that in Zimbra required CLI access. On the user-facing side: near-identical mail composition/attachment flow (including attaching from a server-side drive, not just local files) but with several features built in that Zimbra needed bolted on separately -- integrated chat (vs. Zimbra requiring a separate chat add-on), built-in video/screen-sharing meetings with presence indicators (positioned as a possible internal Zoom alternative), a Zimbra-Drive-equivalent file-sharing feature with mobile support, and native ActiveSync plus first-party mobile and desktop apps (versus Zimbra needing a separately-built ActiveSync server for Outlook-based clients). Session includes some live technical hiccups (screen-share/Zoom glitches) consistent with an unpolished, in-progress internal evaluation rather than a rehearsed product pitch.