How do DNS or SPF lookup errors affect trust?

DNS and SPF errors affecting delivery:

DNS resolution failures:

Records not found or timeout

Authentication cannot complete

Results in temperror or failure

SPF lookup limit (10 DNS lookups):

Exceeding causes permerror

All SPF checks fail

DMARC sees SPF as failed

Impact on trust:

Receivers see authentication failures

May treat as suspicious

Consistent failures damage reputation

Detection:

Use SPF validators to count lookups

Check DNS record health

Monitor authentication pass rates

DNS issues are technical, but consequences feel like reputation problems.

Registry errors prevent credential verification. Fix the paperwork system.