This error indicates that the SPF record for the domain contains recursive issue with one or more of the "includes". One of the domains specified in the "include" tag contains a domain whose SPF record contains an "include" tag for the original domain. This creates a "loop" problem that would cause mail servers to continuously perform TXT lookups for the SPF records. As such, mail servers will end processing of SPF and return a permanent error.
If you encounter this error you will see email delivery issues to all recipient mail servers.
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