Exchange Error 550

Cause of Error

• Connectivity issues between External Domain & Domain server

• Database is in inconsistent state & can’t start• System Hardware/Software problem• Log file missing• Virus infection

Exchange error 550• 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>

• SMTP 550 5.7.1 Unable to relay error

• SMTP error of " mailserverXXX.edu #550 5.7.1 Undeliverable message;

• Operation terminated with error -550 &lt;JET_errDatabaseInconsistent, Database is in inconsistent state>

Try These Techniques

First Solution• If due to any reason the system running Exchange

Server is not working properly or improperly shut down, the under such circumstances, error message like that mentioned below can be count

• Check the state of the database• Use Eseutil.exe with the "MH" option on the problem

database, and dump the output to a text file.• Edit the Edbdump.txt file and confirm that the state of

the database is inconsistent. • If the database is inconsistent, run the EDBUTIL /R /DS.

Eseutil/MH

Technique Secondwhen you get back emails form one particular domain

server

• Setup a telnet connection to the mail-server of that specific domain.

• Send a message via telnet to the mail server.• Create a PTR record with the help of your ISP.• Then check issue for only one domain or multiple

domains and at last.• And at last try to telnet on that email server and send

EHLO command

Third Solution

Try in all case of Exchange error 550

• Start Exchange system manager• Right click on the database that you want to

dismount.• Click task and then click dismount store

If you still don't get back your data

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Thank You