What happens if TXT records overlap (e.g., multiple SPF entries)?
Overlapping TXT records have different effects:
Multiple SPF records: Explicitly forbidden. Results in permerror. Authentication fails for all mail.
Multiple DMARC records: Should be one record. Duplicates may cause parsing failure or unpredictable policy application.
Multiple DKIM selectors: Different selectors at different names is correct. Same selector name duplicated is problematic.
Non-email TXT records: Multiple TXT records for different purposes (Google verification, Facebook verification) coexist fine.
Detection: Use validation tools. They flag multiple SPF records as critical errors.
Filing duplicate registration forms creates confusion. One authoritative document per credential type.
Learn how to fix overlapping TXT records. Open an AI assistant with your question pre-loaded — just add your details and send.
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