spfquery(1p) on Linux
The text 01f0a0e40a63, as Debian 4.0 (Etch) shipped it.
checks if an IP address is an SPF-authorized SMTP sender for a domain
Flags it lists
-
--debug -
--default-explanation -
--fallback -
--guess -
--keep-comments -
--local -
--max-lookup-count -
--name -
--no-keep-comments -
--no-sanitize -
--no-trusted -
--override -
--rcpt-to -
--sanitize -
--trusted