Reminders fire at 11:45 PM even though the sender did not include a reminder

Exchange 2007 puts an end to “’reminder spam” and overrides the sender’s reminder, using the recipients default reminder settings. This works great, except for all day events without reminders. Exchange sets them to use the default appointment reminder, which many people leave at 15 minutes. Unfortunately for anyone who syncs their mailbox with a handheld device, the reminder on their device goes off at 11:45 PM.

Resolution

To fix, the administrator needs to install Update Rollup 4 for Exchange Server 2007 Service Pack 1. on the Hub Transport server(s). For more information about Update Rollup 4 for Exchange Server 2007 Service Pack 1, see Description of Update Rollup 4 for Exchange Server 2007 Service Pack 1 (Published 10/7/2008).

Note that newer updates for Exchange 2007 are available and should be considered.

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Last reviewed on Sep 12, 2011