Exchange Error 550: Cause and Resolve

Different Forms of Exchange Error 550

error message: 550 4.4.7 queue.expired; message.expired

There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.

<jomc.co.uk #5.5.0 smtp;550 must be authenticated>

Operation terminated with error -550 <JET_errDatabaseInconsistent, Database is in inconsistent state>

SMTP 550 5.7.1 Unable to relay error

Main Reasons

Accidental power off also termed as dirty shutdown Hardware/Software error Hard drive Failure Missing Catalog Files Backup Software Malfunctioning Virus Attack Abrupt program termination Incorrectly installed OS

Recovery Methods

Two ways are possible that can be helpful in Exchange server recovery:-

First method:

1.Start Exchange System Manager.

2.Right-click the database that you want to dismount.

3.Click All Tasks, and then click Dismount Store.

Alternatively:

Run ESEUTIL Command.

Recovery Methods

Second recovery method is to take help of a professional third party tool like Stellar Phoenix Exchange Server Recovery.

This EDB recovery software retrieves corrupted emails, attachments, contacts, tasks, calendar and appointments.

It is designed to support Exchange Server versions 2010, 2007, 2003, 2000 and 5.5.

For more details visit:-

http://exchange.stellarservertools.com