Items disappearing from public calendar?

Gabe_Rivera
Gabe_Rivera used Ask the Experts™
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We give away tickets to basketball and hockey games to clients and internal employees from time to time. My boss wanted some kind of calendar that was accessible to everyone in the organization, so I thought I'd create a calendar and stick it under the public folder area.

Well this worked out just great, except for one little problem: Items are disappearing off of the calendar on the weekends.

My boss had entered in all the upcoming games for the rest of the month and they were there all week. She came in today and they're all gone. She wants an explanation and I don't have one to give her. Any ideas?
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What permissions are set on this public calendar (both from an Outlook point of view and an Exchange point of view)?

Author

Commented:
Well I gave all 30 employees owner rights basically, security isn't a huge issue on this folder. Since the items started disappearing, I removed everyone's delete rights aside from mine and one other employee.

Don't have any client side Outlook permissions set. Shouldn't need to with a public folder.
Granted, but perhaps I should just have said 'Client permissions'.  I know you can edit them from within Exchange Admin, I just tend to do it from within Outlook because on my system, it's quicker, and I meant it to distinguish from the usual Exchange Admin permissions screen.

<end clarification>

Anyway, if you're satisfied it's not permissions, are there any tasks that run at a weekend?  Also, is there any replication going on, with a very short replication age limit (a few days that happens to expire at weekends)? Check the Public Information Store properties for the server, and also the properties for the individual calendar.  You can also set the expiration task to only happen once a week, so if the expiration time is less than 7 days, and it happens once a week, everything will vanish once a week.  Is it possible that this value has been changed so it's not default (every 24 hrs)?  This value is in the registry, HKLM\System\CurrentControlSet\Services\MSExchangeIS\ParametersPublic\ - new value, 'Replication Expiry', interval time in milliseconds.
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Author

Commented:
No on the replication question.

Tasks, that's a good question. I'm pretty new to Exchange 2000, I don't know where I would check to see if anything was being run on the weekend.

Author

Commented:
Ok I just checed and I did have mailbox maintenance set to run every Saturday at midnight. Not sure if that matters.

Author

Commented:
Ok I just checed and I did have mailbox maintenance set to run every Saturday at midnight. Not sure if that matters.

Author

Commented:
Good call man, I think this is exactly what I'm looking for. Only problem now is I can't figure out where to list the exclusion. I have both the Corporate Antivirus program as well as the Antivirus/Filtering products on that server, both made by Norton. I found the section to exclude public folders from the scans in the Antivirus/Filtering, but I can't seem to find anywhere in the Corporate Antivirus program to exclude the M: drive. Any ideas?

Commented:
Open system center and right click on the server you want to manage.  Open all task and then norton anti virus.
Then go to server real time protection options.  Under options there is a check box next to exclude selected files and folders.  Click the exclusions check box and the click the button that says exclusions. Make sure the check box is checked the say to check for exclusions before scanning.  Then click files and folders and put a checkbox next to the M: drive.  You will also want to check your scheduled scans by right clicking the server and going to norton antivirus and then scheduled scans.  If you have any scans setup open them and click scan settings and uncheck the M: drive.

Tom

Author

Commented:
Everything's looking good. The only problem I am having now is I can't change the scheduled scan... no idea why?

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