Greetings,
I am currently planning a migration from Icewarp to Exchange 2013 on-premises, ~1500 users. Is there a way to perform this without recurring to third party tools? If not, can anyone point out a free tool to be used, as the customer will not approve additional costs to the project.
I've looked everywhere on the web and I seem to be unable to find any information on this.
Please help.
Thanks.