Install DKIM on 2 Exchange 2019 EDGE server

Hi @Johnny Broe ,

Thanks for posting in our Q&A forum.

By research, to installs and configure DKIM on your two Exchange 2019 EDGE servers that are receiving emails from three different domains, you can follow the steps below:

1. Generate a public/private key pair for each domain that you want to sign outgoing messages with.
2. Publish the public key in a DNS TXT record for each domain.
3. Install the DKIM signing module on your Exchange 2019 EDGE servers.
4. Configure the DKIM signing module to sign outgoing messages for each domain using the corresponding private key.
5. Create a transport rule on your Exchange 2019 EDGE servers to add the DKIM signature to outgoing messages.

Reference: https://social.technet.microsoft.com/Forums/en-US/cf42e3b0-75ff-49d1-aece-7f4066f95653/how-to-setup-dkim-for-exchange-server-2019-does-exchange-provide-dkim-inbox

https://social.technet.microsoft.com/wiki/contents/articles/35595.on-premises-exchange-dkim-and-dmarc-setup.aspx

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