If your domain has no DMARC record, the answer is yes — and mailbox providers know it. Gmail and Yahoo tightened sender requirements in February 2024, and Microsoft now rejects non-compliant bulk mail outright. Check your domain in 5 seconds:
Runs entirely in your browser via Cloudflare's public DNS — we never see what you type.
Two ways an unprotected domain bleeds: scammers impersonate your business to your own customers, and your legitimate quotes and invoices increasingly land in spam — because since 2024, mail from under-configured domains is treated as suspect by default. You typically find out from a customer who says "we never got your invoice".
Email Deliverability Rescue — €240 fixed, done in 1–2 days. SPF, DKIM and DMARC configured correctly for your actual mail setup, proven with a 10/10 deliverability score, plus a monitoring report so you see who's sending as you.
Also free: is your Google Analytics actually collecting anything? · all services