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* [[FAQ/Examples|What is an example of how a receiving mail server uses SPF?]]
* [[FAQ/I18N|SPF Internationalization]]
=== Objections
* [[##rrtype]] [[FAQ/TXT abuse|Shouldn't you use SRV or EDNS0 records?]]
* [[##rrtype]] [[FAQ/TXT abuse|Shouldn't you use SRV and NAPTR records?]]
* [[##strongcrypto]] [[FAQ/Strong Crypto|How is "strong cryptography" any more secure an assertion method than IP address authorization?]]
* [[##sunbeltpersonalfirewall]] [[FAQ/Sunbelt_Personal_Firewall|Does SPF block advertisements, web pages, or other programs?]]
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