MX Record
The DNS record declaring which servers receive email for your domain. No MX, no inbound mail.
Free · no signup · last reviewed August 29, 2026
The definition
The DNS record declaring which servers receive email for your domain. No MX, no inbound mail.
Why it matters to an owner
Why DNS changes deserve terror-level care: botch the MX during a website migration and your email silently stops. Screenshot DNS before touching anything.
Keep going
SPF (Sender Policy Framework)A DNS record listing which servers may send email for your domain. Receiving servers check…DeliverabilityWhether your email actually reaches inboxes rather than spam folders or silent rejection. …Email Deliverability CheckerCheck any sending domain in seconds: SPF, DMARC (with policy), MX, and three blacklist ver…
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