Backup Exec 12.5 not backing up Exchange on SBS2008

We have recently installed Backup Exec 12.5 (Rev 2213) on SBS2008. Everything backs up EXCEPT for Exchange which gives the following errors:-

Backup- \\SERVERNAME\Microsoft Information Store\First Storage Group V-79-57344-766 - Cannot log on to MAPI with the specified credentials. Review the resource credentials for the job, and then run the job again.

Backup- \\SERVERNAME\Microsoft Information Store\Second Storage Group V-79-57344-766 - Cannot log on to MAPI with the specified credentials. Review the resource credentials for the job, and then run the job again.

I have followed Symantec article http://seer.entsupport.symantec.com/docs/311718.htm and I ran a successful backup of Exchange only.

Both my full daily backup and my Exchange test backup use the same Resource Credentials, and when I select the option to "Test All" for the credentials, both storage groups show the results "Successful - used server credentials"

So why is my full daily backup failing on Exchange when my Exchange only test worked fine?

Thanks
LVL 17
Chris MillardAsked:
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tankmurdochCommented:
I have seen this before and the 1st option would be to move Exchange to 1st in the list to get backed up, 'resource order' in the job itself. If this fails then there is another fix, edit the hosts file:
Go to:
C:\Windows\System32\drivers\etc
And open the ‘Hosts’ File.

Delete:
::1 localhost

Add these lines:

127.0.0.1                   servername
127.0.0.1                   servername.domainname
Ip address                servername
Ip address                servername.domainname


This should fix it if the 1st method fails.

Let me know
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Chris MillardAuthor Commented:
Changing the resource order so that the first and second storage groups get backed up first has resolved the issue.

Thank you very much for your help.
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