Exchange 2010 quota warning messages issue


In Microsoft Exchange 2010 environments, Exchange sends a quota message to mailbox owners when mailbox size exceeds:

  • IssueWarningQuota – the lowest storage quota
  • ProhibitSendQuota – the middle storage quota
  • ProhibitSendReceiveQuota – the highest storage quota


All Quotas limits can be configured at mailbox or database level.

We can define time when messages are sent by specifying QuotaNotificationSchedule for Mailbox Database.


If we want to check QuotaNotificationSchedule use:

Get-MailboxDatabase | select name, QuotaNotificationSchedule

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