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Level 1

28 points

Custom Email Domain missing DKIM records

I have set up a couple of domains for icloud's custom email for domain following instructions as found https://support.apple.com/en-gb/HT212524. This includes setting up a CNAME record for the domain to point at the canonical DKIM record controlled by Apple. eg. a custom domain of 'foobar.uk.' should have a CNAME record 'sig1._domainkey.foobar.uk.' pointing to 'sig1.dkim.foobar.uk.at.icloudmailadmin.com.'

From the support document for a domain 'example.com':

CNAME:

host: sig1._domainkey

points to: sig1.dkim.[example.com].at.icloudmailadmin.com.

TTL: 3600

Unfortunately I cannot retrieve any records from the target (canonical) address: eg.

dig sig1.dkim.[example.com].at.icloudmailadmin.com. TXT

dig sig1.dkim.foobar.uk.at.icloudmailadmin.com. TXT

Clearly 'foobar.uk' is not my real domain, but I have 2 domains set up with Apple and neither has a valid DKIM record.

Anyone else?

Posted on Oct 6, 2021 2:32 AM

Best reply

Jee Are

Level 1

5 points

Posted on Nov 11, 2021 4:20 AM

Hi there. I have a support ticket open for the missing DKIM records with Apple since end of October. Not so much progress on the ticket and it was not easy to get the DKIM subject explained to support. Anyway I have had several contacts now and shared a lot of information and evidence with support and currently it sits with engineering.

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Custom Email Domain missing DKIM records

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