Category:MPSDC (XTRANET)

MPSDC (XTRANET) KT Session 13-July-2026- Tetra Support Staff - TAKSHAY[edit]

Video summary: KT session on MPSDC/XTRANET's 5-server Zimbra Network Edition infrastructure: two MTA+proxy nodes (ZP1/ZP2, active-active, fronted by the client's own external load balancer -- not something Tetra manages), two mailbox+LDAP nodes (ZM1/ZM2, active-passive in a PCS cluster), and a dedicated archive server. Covers a recent full-stack rebuild -- RHEL 7 to RHEL 9 and Zimbra 10.0 to 10.1.13, driven by accumulated vulnerabilities on the old OS -- done by standing up five fresh RHEL 9 VMs alongside the old server and migrating mail data across via imapsync, keeping the same server naming. Also covers routine issue patterns: application relay-denied errors needing the app's IP whitelisted on both proxy nodes, mail flow via dedicated Trend Micro-hosted MX records for spam filtering on both inbound and outbound, and -- the most detailed part of the session -- the full offline license activation procedure this client requires (unlike most clients' simpler online activation): disabling/permissive-mode SELinux, installing the license daemon package, generating network/license fingerprint files from the server, submitting them through Zimbra's licensing portal to get back an XML activation file, and applying it either via the admin console or the `zmlicense` CLI.