Frequency of Event ID 8528 being logged in Event Viewer on an Exchange 2010 SP3 ru4 Database Server

We have a number of user’s mailboxes set to Prohibit Send & Receive set to 0KB, as they are on long term leave and we don't want email being sent from or delivered to their account. We also have the Issue Warning at (MB) set to 50MB at the databases level. Event ID 8528 is being logged as expected in the Application Log, however the frequency of the event being logged for each user is very unusual.  Out of the 19 users (whose mailboxes are hosted on the Server that have had their account set to 0KB) the occurrence of the event being logged for 17 of them (over the last 3 weeks) is in the 10’s or 100’s and what you would expect since I understand the event is triggered each time there is an attempt to send/receive/access the account. etc. The total number of Event ID 8528 entries over this period is 50470, for which 24720 entries relate to one user and another 24610 relate to another users mailbox. The users are standard accounts and wouldn’t have any special access over and above the users. I do not understand why there is such a high number of entries for only 2 users and would like some advice on what can be checked or why this may be occurring.  Thanks.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Raheman M. AbdulSenior Infrastructure Support Analyst & Systems DeveloperCommented:
Check the user's mailbox rules.

check this Quota NotificationSchedule
to check on each database :
Get-MailboxDatabase | format-list Name, QuotaNotificationSchedule
Barnardos_2LSAuthor Commented:
Thanks, I have checked and there are no rules setup on the user's mailbox and the Quota NotificationSchedule is set to run between 1:00 and 1:15 every day for all Databases.
Barnardos_2LSAuthor Commented:
Further investigation indicate that the accounts causing the execessive logging have Blackberry's assigned which may be the cause of the excessive logging .  Looking to get the Blackberry accounts disabled to confirm this.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Barnardos_2LSAuthor Commented:
Confirmed issue was with Blackberry Accounts. Blackberry solution is no longer used therefore issue has been resolved
Barnardos_2LSAuthor Commented:
Blackberry accounts were the cause of the excessive logging
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.