Hi everyone. I am doing a study for my company. I need to identify a couple of companies that have migrated from Exchange 5.5 to Zimbra.

I hope somebody can share their experience and maybe give me some suggestions.

I would like to know:
  • Amount of servers migrated
  • How big was (were) the database(s)
  • How many workstations, users and email accounts?
  • People and process impact
  • Some comments about migration process, advices, etcetera.