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For more information about using a developer kit, please refer to Developer Kits (Exhibitor Portal).
Setting Up the Custom Domain Email Service
From the ‘My Services’ page, click on the details of your ‘Custom Domain Email’ service.
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In the ‘Configure Domain’ section, enter your domain, custom DKIM selector (a custom identifier for when your domain is authenticated to send from multiple different instances).
In the ‘Configure Sender’ setting, enter your sender details.
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Once you click ‘Save’, refresh the page. You will then be presented with CNAME records to authenticate by your domain admin.
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Once the CNAME records are verified on your domain’s end, click the ‘Verify’ button.