At least one of your name servers failed to respond in a timely manner.
Additional Information
Under normal circumstances, a single name server being temporarily unresponsive should not cause significant impact. The resolver will automatically attempt to contact another server to reply to it's query and the result will be cached according to the TTL configured for the record.
The fewer name servers you have serving your DNS records the more weight we recommend giving this warning.
DMARC is the key to improving Email Deliverability!
Email is the key to your customer communication strategy. But, what is your email reputation?
Setting up and managing your DMARC configuration is the key to getting insight into your email delivery. MxToolbox is the key to understanding DMARC.
MxToolbox Delivery Center gives you:
- Who is sending phishing email purporting to be from your domain
- What is the reputation of your domains and delegated IPs
- Where other senders are and What their reputations are
- How your SPF, DKIM and DMARC setup is performing
- What on-going maintenance you need to maintain and improve your email deliverability
Learn More