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.
Your Email Deliverability is in Jeopardy!
Blacklisting is a sign that you are not actively managing your email deliverability. Other technologies - SPF, DKIM and DMARC are now just as important to get your email placed in the Inbox of your recipients. If you aren’t managing email deliverability, your message may never be heard.
MxToolbox Delivery Center Features:
- Insight into your SPF, DKIM and DMARC configuration to ensure your sending email properly
- DMARC Compliance checks for all of your reported email
- Adaptive Blacklist Monitoring of all your email senders
- Recommendations for improving DMARC compliance and DMARC policies
- Event-based reminders for emergent issues and on-going maintenance
DMARC is a necessity for your business!
Learn More about Email Delivery