Adding postmaster address for multiple domains

Copper Contributor

Hello all,


Our company has many different domains and it appears none of them have a  address. I was easily able to create the postmaster account for our main domain using Get-TransportConfig | Format-List ExternalPostmasterAddress and Set-TransportConfig -ExternalPostmasterAddress 


What I am asking is how do I go about configuring the postmaster for our other domains? It can't be as simple as doing Set-TransportConfig -ExternalPostmasterAddress postmaster@domain2 .com? I feel like that would just set the main domain postmaster address to


Thanks for any help you can give.

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