Error "A CNAME must point to a fully qualified domain name" when using '_' in Points To Field

Symptom

Receives "A CNAME must point to a fully qualified domain name" when trying to create DKIM records

Steps to Test

1. Login at UltraDNS
2. Click on <yourdomain.com>
3. Under CNAME click Add+
   1. Enter Host
   2. Enter Points To that contains an '_'
   3. Click Save (At this point you receive an error "A CNAME must point to a fully qualified domain name".)

Root Cause

Temporary UI bug due to overly strict validation

Steps to Resolution

1. Login at https://portal.ultradns.com/
2. Click on <yourdomain.com>
3. Click on Bulk Import
4. In the Enter BIND Text into text field textbox, enter your CNAME (or CNAME's) in this format
   1. <hostname> 3600 IN CNAME <points to>
   2. For example: selector1._domainkey.ultrasupport.net. 3600 IN CNAME selector1-ultrasupprt-net._domainkey.example.onmicrosoft.com.
5. Click Submit

Additional Information

This article is a workaround to a bug. We are releasing a UI update within the next couple of weeks that will address the validation issue that blocks creating CNAME's with '_''s normally.