MXToolBox, inc’s MXToolBox SPF record checker is a diagnostic tool that helps an SPF (Sender Policy Framework) user evaluate the SPF record of the queried domain name for syntactical, typographical, and configurational errors. These errors are highlighted upon SPF lookups so that you can fix them before malicious senders exploit them to send spam emails on behalf of your company.
The content of such fraudulent emails manipulates recipients (your customers or prospects) into sharing confidential and password-protected documents and account information. Deploying the SPF protocol in conjunction with DKIM, DMARC, and BIMI is recommended for enhanced email delivery.
If you ignore syntax errors and email configuration changes spotted by MXToolBox SPF checker, your email deliverability gets hampered, and chances are that your messages stop landing in recipients’ inboxes.
Elements Evaluated During an MXToolBox SPF Check
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The MXToolBox SPF will run checks and see if your domain’s TXT SPF record exists. If not, you should create one using an online SPF record generator. If yes, it will validate it against the following list of value checks-
- Multiple SPF Records
- Maximum Lookups
- Use of the PTR Mechanism
- Use of the +all Mechanism
- Use of SPF DNS Type
- Use of the MX Tag
Note: There’s a maximum limit of 255 characters in a TXT SPF record created for a business domain.
How To Check SPF Records Using MXToolBox SPF?
It’s quite straightforward to use the MXToolBox SPF checker available on Google. All you need to do is go to this link, enter your domain’s name (or URL) and IP address (optional) in the spaces given, and click on the ‘SPF Record Lookup’ button. You’ll receive all the lookup test results and insights for the queried domain name or IP address range in just a few seconds.
How to Resolve the Maximum DNS Lookups Error?
If you’re struggling to stay within the 10 SPF DNS lookup limit, then try removing unnecessary include statements, PTR mechanisms, and mechanisms belonging to the same domain while also ensuring to use ip4 and ip6 IP mail servers only. Monitor the changes and evaluate if the problem is sorted across the site map.
However, if you are still exceeding the limit, then AutoSPF’s automatic SPF flattening will help you by replacing the original mechanisms and modifiers with IP addresses. You can take support from our expert team by contacting us today.