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E
Authentication & DNS
Why is my SPF failing?
R
E
Authentication & DNS
Why is my SPF failing?
R
E
Authentication & DNS
Why is my SPF failing?
To troubleshoot SPF failures:
Identify your Return-Path (bounce) domain from your email headers
Locate the sending IP address(es)
Use the Vamsoft SPF Policy Tester to diagnose issues
Common causes of SPF failures:
Missing include:Emailmail.com in SPF record
Incorrect IP addresses in SPF record
Too many DNS lookups (exceeding 10 lookup limit)
Syntax errors in SPF record
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Reach
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Manage
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