SPF test sites

Vamsoft SPF Policy (live) tester
Kitterman (offline) tester
Tech-Savvy extreme online tester
Home - SPF checkers - NATO Phonetic alphabet - DNS test tool - Mail test - IPV6 links
Password generator - CSR generator - What is you`re IP - DANE/TLSA links - Fortigate IP/URL links
Remote Support - WHOIS