Create DKIM in PowerMTA

To generate DKIM, go to

https://www.sparkpost.com/resources/tools/dkim-wizard/

On first text box, enter the domain name that you will be sending email from. For example, if i need to sent email from [email protected], i need to enter serverok.in in this text box.

In DomainKey Selector text box, enter name for your DKIM key. This can be any name, no space allowed. In below screenshot, i used “default” as key name.

Key size in bits = 2048

PowerMTA DKIM

click “Create Key”.

Save “Private Key” it geneate in file

In above example, the file name is default.serverok.in.pem

Next you need to edit DNS record for your domain name. Create a TXT record with following name

In cause of above example, the name is default._domainkey.serverok.in

The DKIM wizard will give value for this TXT entry, use that. For some DNS providers, you don’t need to use double quote for the text value. If your provider show double quote, then you don’t need it. For v=DKIM1\; k=rsa\; the \ is not needed, remove that.

Enable DKIM Signing

To enabe DKIM signing, edit

Add

This can be in your virtual mta setttings like

See PowerMTA

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