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MS Exchange 2003 - Outlook Calendar Events Missing

jkockler asked
Medium Priority
Last Modified: 2012-05-06
Microsoft Exchange 2003
SBS 2003

Suddenly today, most users are missing all of their calendar events, past, present and future, and all reminders are gone.

I have a daily backup on tape but I have never restored anything to Exchange before and / or know if that will fix this issue long term.

There are a bunch of active sync errors in the event log being spawned as well.
( I am replacing real server names with xxx )

Error Event ID 3005
Unexpected Exchange mailbox Server error: Server: [xxx.xxxx.xxx] User: [xxx@xxx.com] HTTP status code: [503]. Verify that the Exchange mailbox Server is working correctly.  

Event id 3015
IP-based AUTD failed to initialize because the processing of notifications could not be setup.  Error code [0x80004005].  Verify that no other applications are currently bound to UDP port [2883], or try specifying a different port number.

Event ID 3024
IP-based AUTD failed to initialize.  Error code: [0x80004005].


What is the process?  Tips, suggestions?  Thanks!
Watch Question

Robin HumanHead of Network Services

Looks like the ports are in use by other items;
try restarting the server


I have restarted, same issue.
Robin HumanHead of Network Services

Try dismounting the information store, running eseutil /D, and remounting the store
(see this article: http://forums.msexchange.org/m_1800465988/mpage_1/key_/tm.htm#1800466027 )
Also, take a look at this MS article
Hope this helps


I run that from a command prompt?  Kind of a newb here man.. Where are the calendars located in the store?  If all events are missing suddenly today, would you think that restoring a back up from yesterday would bring the calendar events back?  This is more an issue with missing calendars, than it is with active sync from the phones.


After second reboot, Active Sync is started successfully and no more errors from it in the event log.

However, there is still data missing from calendars.  
I worked out the solution in another thread, since this one seemed to fizzle out on suggestions..  I had to create a recovery storage group and use exmerge.exe to get the calendar back.  Here is the link to the other thread with the solution:

<a href="http://www.experts-exchange.com/viewQuestion.jsp?shareit=GAQb14KQjY5VEZHi42ttDth/VLUtou6LdFghgGhRyP3SHqraLwd9sANaq/KCdHmosAlOsbDAnNI%3D&shared=0&cid=863">Restore Calendar in Exchange 2003</a>

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