Exchange 2010 - Question regarding Set-CalendarProcessing -ProcessExternalMeetingMessages

We are running Exchange 2010 and Blackberry BES 5. In order for users to be able to respond to external meeting requests from their Blackberries, we need to set the following option:

Set-CalendarProcessing -ProcessExternalMeetingMessages $true

My question: Is there a downside to setting this to true for all of our users, whether they have Blackberries or not?
Who is Participating?
imkotteesConnect With a Mentor Senior Messaging EngineerCommented:

For all the users in the org:
Get-mailbox | Set-CalendarProcessing -ProcessExternalMeetingMessages $true

For the users in the particular DB:
Get-mailbox -identity "databasename"| Set-CalendarProcessing -ProcessExternalMeetingMessages $true
Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
There shouldnt be but i would prefer you to just run on the BB set of users

Have a custom attribute to all bb users and then work as per that

cziggyAuthor Commented:
Still hoping to get more information, preferably concrete documentation from Microsoft?
Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
What info do you require from MS documentation ?

- Rancy
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