SPF-FLATTENER

This tool flattens the SPF record for a given domain to avoid reaching the 10 DNS lookup cap.

Flags

Flag	Required?	Type	Default	Description
domain	required	string		root domain to set SPF record for
initialSPF	optional	string	“”	initial SPF record to flatten*
verbose	optional	bool	false	if true, print extra debug lines
dryrun	optional	bool	true	if false, update existing SPF record with flattened SPF
warn	optional	bool	true	if true, compares initial and flattened SPF, warning when different
url	optional**	string	“”	url to PATCH updated SPF record
authEmail	optional**	string	“”	X-Auth-Email header value
authKey	optiona**	string	“”	X-Auth-Key header value

*if not provided, will lookup and use existing SPF record for domain

**unless dryrun is false, then required

Example use cases

Base case: one-time flatten tool, just want to output flattened record:

go run main.go --domain <domain> --warn false

Dynamic update case: update SPF tool that acts without intervention. For example, a cron job that runs:

go run main.go --domain <domain> --initialSPF "<spfRecord>" --dryrun false --warn false --url "<url>" --authEmail "<email>" --authKey "<key>"

Dynamic warning case: recurring check SPF tool that alerts/warns on change. For example, a cron job that runs:

go run main.go --domain <domain> --intialSPF="<spfRecord>" 

Then once someone checks/approves of change, run once:

go run main.go --domain <domain> --initialSPF "<spfRecord>" --dryrun false --warn false --url "<url>" --authEmail "<email>" --authKey "<key>"