msExchHomeServerName pointing to the old server and other server that doesn't make any sense ?

Hi People,

I'm in the middle of migrating some of my mailboxes to Office365 When I execute the below Script:

Get-ADUser –filter * -Properties msExchHomeServerName | Where-Object {$_.msExchHomeServerName –ne $null} | Sort-Object -Property UserPrincipalName | Select-object Userprincipalname, msExchHomeServerName

I can see that there are several thousands of mailboxes returning the old server and some other servers that don't make any sense at all?

/o=DOMAIN.com/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=PRODMAIL04
/o=DOMAIN.com/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=SVR-EXC02
/o=DOMAIN.com/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=TEST-SVR18
/o=DOMAIN.com/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=New-VM07

What can I do to resolve this issue properly?

Thanks in advance.

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