~/tools / spf-checker

SPF Checker

Check SPF record. Counts DNS lookups against the 10-lookup limit, flags `+all` security holes, and identifies common mistakes.

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[ OK ] Strict SPF (-all). Unauthorized senders are rejected.
── output ─────
v=spf1 a mx include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:aspmx.sailthru.com include:mail.zendesk.com include:242234635.spf02.hubspotemail.net -all
DNS lookups
7 / 10
All mechanism
-all
Includes (5)
usb._netblocks.mimecast.com, spf.protection.outlook.com, aspmx.sailthru.com, mail.zendesk.com, 242234635.spf02.hubspotemail.net
IP4 (0)
IP6 (0)
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