Unable to issue Certificate - DNS Problem: NXDOMAIN looking u A for [domain]

Additionally, you currently have a mix of nameservers:

jlcrecruitmentandcare.co.uk. 172800 IN  NS      ns1.bdm.microsoftonline.com.
jlcrecruitmentandcare.co.uk. 172800 IN  NS      ns2.bdm.microsoftonline.com.
jlcrecruitmentandcare.co.uk. 172800 IN  NS      ns.123-reg.co.uk.
jlcrecruitmentandcare.co.uk. 172800 IN  NS      ns2.123-reg.co.uk.

You need to get rid of one set. So you are either fully committed to using 123-reg, or fully committed to using Office365’s. Don’t use both.

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