Free tools

No signup needed. Check your setup before you send.

SPF, DKIM & DMARC checkerEnter your sending domain to check its authentication records and whether it meets the Gmail and Yahoo sender requirements. The first thing to check when newsletters land in spam.Check your domain →Subject line checkerCheck length, where your subject gets cut off on phones and common spam signals, with an inbox preview.Check a subject line →Email footer generatorEnter your business name, address and unsubscribe link to get a CAN-SPAM-ready footer as text or HTML.Generate a footer →Consent wording generatorGet sign-up checkbox text and a double opt-in confirmation email for the US, UK, EU, Canada, Australia or Japan.Generate wording →Email footer compliance checkerPaste your newsletter footer and see whether it has what CAN-SPAM requires: sender identification, a physical postal address and a clear way to opt out.Check your footer →