6

By default a room mailbox does not permit external users to make bookings. However there is an option that you can configure to allow external people to make bookings if you need them to. It's the ProcessExternalMeetingMessages flag. Get-Mailbox "external room" | Get-CalendarProcessing | Select *external* If an external sender attempts to book the meeting ...


3

It turns out the users being affected were accessing up to 30 calendars in any one session. For some reason, the outlook clients were saturating all available connections to the server and then once reaching the limit, would produce the symptoms identified. The issue was resolved with modifying the throttling policy on the exchange server.


3

Run this command, it will expand what anonymous users are allowed to see: Set-SharingPolicy -Identity "Enable Calendar Sharing" -Domains "*:CalendarSharingFreeBusyReviewer" then Set-Mailbox -Identity mailbox-alias -SharingPolicy "Enable Calendar Sharing" You can check whether the right policy is assigned by running: Get-Mailbox mailbox-alias | ...


3

You can share free/busy data across Exchange organizations using Active Directory Federation Services. This will require ADFS endpoints at all organizations, but it will do what you want. Of course, whether or not you can convince three other organizations to buy into this is probably not going to happen :)


3

An alternative would be to set up the community edition of Zarafa and only use it for calendaring. You'd either access your calendars with your iPhones or through WebAccess/WebApp (both are web-based clients for Zarafa).


2

Why are addresses being re-written? Exchange has no need to do this, I've not seen a gateway that requires this, and the obvious solution to your issue, that doesn't mean removing the gateway, is configuring the correct email addressing scheme in exchange and stop the gateway from re-writing email addresses.


2

Found the problem. About a dozen of our users had mailboxes of type SharedMailbox. Not sure how that happened or why it only affected one person but converting back to a regular UserMailbox resolved it.


2

In the Exchange Management Console, open the properties for this particular room, and check the Resource Information tab. Check to make sure that the "Delete comments" box is not selected.


2

If you've enabled the Calendar service, by definition, collaborative user data are stored in the server PostGreSQL database. You can access it by different way (network, socket), if you're looking to back this up, with Lion you could type in the Terminal : To backup everything : $ pg_dumpall -U _postgres > /PostgreSQL_Backup/dump_all.psql Calendars only : ...


2

Room Mailboxes, by default, strip out the content, attachments and the subject. To change this, open the Exchange admin console and go to Recipient Configuration -> Mailbox, open the room mailbox, and switch to the Resource Information tab. Also, when you enter your meeting directly on to the calendar (instead of sending a meeting request), you are acting ...


2

As you've discovered from my comment, if you have a catch-all redirect in IIS that is grabbing HTTP requests and redirecting them to SSL (often done for OWA so that the user doesn't get a 404 on the HTTP version), you can experience the issue you are having. You may check and make sure you are doing proper http/https redirecting instead of a catch-all for ...


2

Try deleting the auto-complete address cache (Instructions here). We had this problem when we moved from GoogleApps to Office365. The cached addresses were pointing to Google and threw that error. Clearing the cache (or using the global address list to share) fixed it.


2

I think mfinni's comment about a single human assistant to keep it straight would make the most sense... Is there one of the 4 companies that he works for "the most?" i.e. which one pays him the most? He could have an assistant there who maintains his master calendar and who either polls his other calendars for conflicts or who is the only one who can ...


2

After a couple of days more research plus 3 calls to O365 support... In Outlook, click on 'Folders', highlight the group which contains the shared calendar. In the Ribbon click 'Home > Membership > Unsubscribe'. User will no longer receive invitations, or reminders for that calendar but will still be able to view/add/edit as permissions allow. NB. The ...


1

Try adding the below reg key. I had a similar issue that this resolved. HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Options\Calendar\ DWORD: AllowHTMLCalendarContent Value:1


1

Maybe you can connect to the Exchange Online Management Shell and run the following script to achieve what you want, something like this perhaps (without knowing the working hours you want to configure): Get-Mailbox | Where {$_.RecipientTypeDetails -eq "UserMailbox"} | Set-MailboxCalendarConfiguration -WorkingHoursStartTime 00:00:00 -WorkingHoursEndTime 00:...


1

The only way I found is to use no authentication but a long URL containing a random hash, like: https://example.org/somepath/calendarname-averylonghashtoavoidpiracy.ics This is similar to the "private URLs" used by Google Calendar or Dropbox when sharing. Not perfect, but still better than an easy-to-guess URL. You may use symlinks (or aliases) on the ...


1

No, there is not possible restrict permission to add/modify. Currently is possible to choose these permissions: Change and share Change View details View availability To protect your data when someone deletes an event, you can track changes with the Notifications: https://support.google.com/calendar/answer/37242?rd=1


1

After reviewing the AD information more closely it turns our that the "users" created by generating the resources were missing content in their "First Name" field. The display name and account name were properly completed, but not having a "First Name" made them show up blank. Adding in a name and it's fixed!!


1

This issue can occur when using Cached Exchange Mode in the Outlook. Try the following Outlook settings (These instructions are for Outlook 2010): Open Outlook Goto File > Account Settings > Account Settings Select your Exchange profile > Change > More Settings > Advanced tab Check Use Cached Exchange Mode (if not already checked) Uncheck Download ...


1

Turns out the issue was the contacts syncing was not checked. Once we checked contacts syncing for the exchange account, Users B-Z can see the room listings.


1

Exchange Web Services is the only way I know of that a linux workstation might be capable of doing something like this. EWS can be consumed using SOAP (and REST in Exchange 2013). Providing a complete example would be difficult as I'm primarily Windows-based, but I thought I could help by suggesting EWS. Perhaps these links might help you on your way when ...


1

The following command needs a filter, but will get the information that's needed. Notably this will contain all activesync partnerships including those that are old and not used any more. To filter this information, only retrieve records that have last contacted the server in X days. The other aspect of improvement is how to retrieve the usernames from ...


1

You could have a shared calendar for holidays but there is no way to add it to every user's individual calendar unless you take advantage of Exchange Web Services. There are a couple articles about this http://gsexdev.blogspot.com/2012/02/ews-managed-api-and-powershell-how-to.html and http://gsexdev.blogspot.com/2012/02/ews-managed-api-and-powershell-how-...


1

Check out Scheduler (http://itunes.apple.com/us/app/scheduler-by-superconnect/id546857260?ls=1&mt=8), it allows you to find common open meeting times and schedule directly through your Exchange account on iOS.


1

It sounds like the user's calendar AutomateProcessing flag is set to AutoAccept, which then checks the AddOrganizerToSubject setting and, if set to true, adds the organizer to the subject as you are experiencing. The default setting for AutomateProcessing on a user mailbox is AutoUpdate. To check what this setting currently is for the user, run this ...


1

If you are willing to use something based on jQuery, a number of folks appear to be happy with FullCalendar. I haven't used it myself, but it has day/week/month support out of the box, and hooks to let you populate, retrieve/store, change look and feel, etc. P.S. The Google search that I used was intitle:calendar jquery day month week


1

In addition to Add2Outlook, which requires you to be using running Outlook constantly, they have a server-side product as well in order to sync Outlook calendar to Blackberry called Add2Exchange. It can be a better solution because it is installed directly on the Exchange server and doesn't require a separate workstation be dedicated to the task (you can'...


1

I created an open-source calendar https://github.com/niccokunzmann/open-web-calendar because I could not find one. You are welcome to use this service under https://open-web-calendar.herokuapp.com or just spawn your own before this instance


1

I just faced the same problem and found out that it might be related to Performance problems when you try to access folders in a secondary mailbox in Outlook 2010.


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