Hi harvec, this is a tricky situation — the "Unable to add domain" error when only one specific domain fails (while others work) usually points to one of these causes:
1. The domain may already be associated with another Apple ID:
- Apple's system can block domain verification if the domain (or a subdomain under it) was previously attempted or verified with a different Apple Account
- This is the most common cause when the TXT record generates fine but the domain still won't add
- Solution: Contact Apple Support directly and ask them to check if the domain is already tied to another account in their system
2. DNS propagation delay:
- Even though the TXT record is generated, DNS changes can take 24-72 hours to fully propagate worldwide
- Apple's verification servers may check from specific locations that haven't received the update yet
- Try waiting the full 72 hours before retrying, even if other DNS lookup tools show the record is live
3. Check for conflicting TXT records:
- Log into your domain registrar and review all existing TXT records
- If there are old or duplicate Apple verification TXT entries from previous attempts, remove them and try generating a fresh one
4. Domain format issue:
- Make sure you're entering the domain without "www" or "https://" prefix — just the bare domain (e.g., yourdomain.com)
- Some registrars add extra formatting that can cause issues
5. Contact Apple Support:
- Since you've tried multiple times over 3 days, this is best resolved by contacting Apple Support directly at support.apple.com
- Ask them to investigate the specific domain in their Apple Account system
Hope one of these points to the solution!