This article describes that when meeting issues with migrating an email user’s mailbox, it is possible to set an HA cluster between two FortiMail On-Premise to migrate the mailbox.
Scope
FortiMail On-Premise
Solution
To migrate mailbox users from one FortiMail on-premise to another FortiMail on-premise, it is possible to set up an HA cluster so the user’s mailbox can be synced and migration be successful.
Note:
- FortiMail can be a different model but must have the same version of firmware.
- FortiMail to be migrated will be primary and the other one who receives mailbox data will be secondar.
Step 1: Set HA settings in both FortiMails:
Step 2: Review the HA status:
Step 3: It should appear as synchronized at both FortiMails:
Step 4: Compare mailbox sync data between both FortiMails: