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System Mailbox is absent

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System Mailbox is absent - 3.Oct.2006 3:38:50 AM

janices

Posts: 3
Joined: 20.Mar.2006
Status: offline

Have a front end and back end server running Exchange and using SMTP virtual server between the two. Messages have stopped flowing between the two servers. I can telnet from front end to back end and send mail using mail commands and vice versa. However, mail stacks up in the Qs destined for delivery to each other. On researching, have discovered that out of 14 mailbox stores, only 6 have a "system mailbox". They all have the SMTP mailbox. How can I get messages flowing between the 2 servers again?
Thanks!

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RE: System Mailbox is absent - 3.Oct.2006 3:26:35 PM

de.blackman

Posts: 3542
Joined: 4.Apr.2005
From: Toronto, Canada
Status: offline

Have you tried mounting a blank store for those that are missing the "system mailbox". Mounting a blank store usually recreates exchange "special" mailboxes. It will involve taking stores offline and things like that. Try this:

1. Stop SMTP service on the server. This is because when you mount a blank store you do not want messages going into their new empty mailboxes.
2. Dismount the stores for the entire storage group and find the locations of the databases and log files.
3. Rename the folders where these files are and create new ones with the same names in the same location.
4. Mount all the stores and see if any of the "system mailboxes" show up. If they do, replace the blank stores back with the original stores and your users should be able to access their mailboxes with no issues.

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(in reply to janices)

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RE: System Mailbox is absent - 6.Oct.2006 3:20:23 AM

janices

Posts: 3
Joined: 20.Mar.2006
Status: offline

Thanks for the information. I got it done a different way than you suggested. I took the mailbox stores offline. Then I created new SystemMailbox "user" accounts following instructions in a tech net article. When I mounted the stores, the systemmailboxes came back and mail started flowing. I didn't have to move any mailboxes or rename any store files/directories. Seems to be working fine now!