$ORIGIN . $TTL 1 ; The SPF is the same as the TXT, so there are the differences and basics only. ; OK @ SPF "" "test1" "\255" test2 ; Array of text strings @ SPF \# 1 00 ; Hexadecimal rdata @ TYPE99 \# 1 00 ; TYPE + Hexadecimal rdata @ TYPE99 "" ; TYPE @ spf "" ; Type in lower-case ; KO @ SPF