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SPF Type PTR Check

What you see when your domain has this problem
Type PTR is discouraged Details area Ignore

More Information About Spf Type Ptr Check

Your domain's SPF record includes a sender mechanism type of PTR. The use of this mechanism is heavily discouraged per RFC4408 as it is slow and unreliable. Per email delivery best practices, it is advisable to avoid including PTR type mechanisms in your SPF record.

RFC 4408 states:
"Use of this mechanism is discouraged because it is slow, it is not as reliable as other mechanisms in cases of DNS errors, and it places a large burden on the arpa name servers. If used, proper PTR records must be in place for the domain's hosts and the "ptr" mechanism should be one of the last mechanisms checked."

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

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