hi, I have used the following command on my EMS 2007 Get-DistributionGroupMember "MYGROUP" | Set-Mailbox -AcceptMessagesOnlyFrom EMAIL@DOMAIN.COM Now thise successfully works. But I want to add multiple email addresses, however each time I run the command with a different email alias it just overwrites the last one So how can I adjust my command above to add aditional aliasesCeltic

You have to list them all in the command. Or better still, create group, add the users to the group and use the group as the restriction. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources

You can use the below cmdlet to append the list Get-DistributionGroupMember "MYGROUP" | Get-Mailbox | foreach {$_.AcceptMessagesOnlyFrom+="EMAIL@DOMAIN.COM_} | Set-Mailbox";$

You can try the below set of cmdlets Get-DistributionGroupMember "MYGROUP" | Get-Mailbox | foreach {$_.acceptmessagesonlyfrom+="email@domain.com";Set-Mailbox $_ -acceptmessagesonlyfrom $_.acceptmessagesonlyfrom}