How to Fix SPF PermError, Multiple Records, & 10 Lookup Limits
⚠️ Technical Alert
Symptoms Checklist
If you observe any of the following symptoms, your site or setup is affected by this issue:
- Email validation tools showing 'PermError: SPF Permanent Error'
- Warning: 'Too many DNS lookups (11 or more)'
- Error: 'Multiple SPF records found' (only one TXT record is allowed)
- Spam filters bypassing SPF checks due to syntax formatting errors
Why This Happens
An invalid SPF record tells receiving servers that your domain's outgoing mail rules are broken. Duplicate records or lookup overflows prevent servers from checking your IP, flagging your mail.
Common Underlying Causes
- Multiple Records: Creating separate TXT records for Google Workspace, Sendgrid, and Mailchimp. They must be consolidated into one record.
- 10 Lookup Limit: Using too many 'include:' statements which causes receiving servers to run too many nested DNS lookups.
- Syntax Errors: Typographical errors like spelling 'include' incorrectly or missing the 'v=spf1' prefix.
DIY Quick Fix Steps
Here is what you can check or execute immediately to troubleshoot the issue:
- Check your DNS records for any TXT records starting with 'v=spf1'.
- If you have more than one, combine them. Example: 'v=spf1 include:_spf.google.com include:sendgrid.net ~all'.
- Delete the old duplicate SPF TXT records.
- Check your domain lookup count using dmarcian's SPF surveyor tool.
⚠️ Caution: Changing DNS, server logs, or WordPress databases incorrectly can cause site downtime. If you're not comfortable, skip these steps and hire assistance.
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