Forum Discussion
StefanoC66
Nov 21, 2024Iron Contributor
Cross Forest resource mailboxes
During a cross forest migration how can we have users access the resources mailbox calendars from each of the forest ?
And also how can they share/access theirs free/busy availability ?
thanks
- Dan_SnapeSteel Contributor
It should work if you've run the prepare scripts for the cross forest mailbox migration provided by Microsoft. You'll need to set up an organisation relationship in both Exchange orgs for free busy
- StefanoC66Iron Contributor
Hi Dan_Snape
I tried to run the prepare the room mailbox, with the prepare script, on the destination forest but it doesn't work.
Could you please elaborate your advice
You'll need to set up an organisation relationship in both Exchange orgs for free busy
How should I setup the Org relationship between the two Org considering they share the same smtp namespace ?
- Dan_SnapeSteel Contributor
As per my reply to your other question, you'll need to configure alias SMTP addresses that apply to each each Forest, and these will be configured as the target address for the MEU that are created in the other Forest (ie Mailbox user in ForestA has primary email address of "user at contoso dot com" and an SMTP alias of "user at forestA dot com". The cross-forest prepare script creates an MEU for that user in ForestB with a primary SMTP of user at "contoso dot com" and a target address/SMTP alias of "user at foresta dot com". An organisational relationship is set up to in ForestB to "foresta dot com"
You then do this in reverse for free busy the other way.
You'll need to set up all the underlying DNS records and certificates to make this work prior to doing this as well.