If Exchange Server fails to deliver any email message to the target recipient, it generates a Non-Delivery Report. The causes include expired or inactive accounts, SMTP issues, non-existent accounts, firewall interoperability concerns, email address misspelling and more. However, the most scaring one is when it generates NDRs because of corruption in Information Store databases. If Eseutil fails to repair the database in such cases, you might need to restore it from the backup or use a third-party Exchange Server Recovery software that could repair the database effectively.

For an instance, consider that a user connected to Exchange Server sends an email message. The email fails to be delivered and the sender receives an NDR, similar to below:

The following recipient(s) could not be reached:

'UserName' on Date and Time
The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. If it still fails, contact your system administrator.
ServerName.Domain.com #5.0.0

Additionally, you might receive events 1706 or 327 recorded in Application log in Event Viewer after increasing the MSExchangeTransport diagnostic level in Exchange System Manager. Converting error 1017 and 1310 of error 327 through Error.exe results errors:

“JET_errInvalidTableId”

and


“JET_errRecordDeleted”

Cause

The issue could occur due to the below possible reasons:

1.Exchnage Installable File System or /Exchsrvr folder and its subfolders have been scanned by an anti-virus software
2.Exchange Server information store databases are corrupted or damaged

Such error cause difficulties while reading or writing data to the information store databases and hence the above errors result.

Solution

Follow these steps to resolve the issue:

1.Dismount the mailbox store while making sure that Exchange Server Information Store service is running
2.Try to defragment the database using eseutil /d utility
3.Check and correct information store databases integrity using Isinteg.exe utility
4.Mount the database and check if the problem persists
5.If it still continues, use a backup to restore the damaged databases
6.If no clean backup is available, use a Exchange Recovery Software to repair the database. Exchange Server Recovery software are powerful tools built with advanced and safe algorithms to repair a damaged Exchange database and extract the user mailboxes.

Stellar Phoenix Mailbox Exchange Recovery is a high-end tool to safely extract all the mailboxes from damaged databases created with Exchange Server 5.5, 2000 and 2003. It is a non-destructive Exchange Server Recovery product that can restore all objects including emails, email properties, tasks, drafts and more.

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About the Author:
Axel Culver has passion for writing Technical article. He is right now writing articles related to Product like PST Recovery Sofware and PST Recovery tool for MS Outlook. He is a professional writer.

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