Gmail MX Records: gmail.com Mail Servers, SPF and DMARC

Updated 29 October 2026 · Volt Ghost team

gmail.com MX records

We read these records from Cloudflare's public DNS-over-HTTPS resolver on 29 October 2026. Mail servers try the lowest priority number first and only move down the list if that server doesn't answer.

Gmail is unusual in giving every server its own step in the ladder. Outlook.com, by contrast, publishes a single MX host (see Outlook MX records), and Yahoo puts three servers on the same priority so they share the load (see Yahoo MX records). When we checked, the primary name returned a single IPv4 address, so the four backups are what give gmail.com its redundancy in DNS.

Gmail's sender authentication records

• SPF with redirect=: instead of listing its sending IP ranges itself, gmail.com hands the whole SPF decision to _spf.google.com, the same record Google Workspace customers include. That keeps one list of Google's outbound servers in one place.
• DMARC p=none, sp=quarantine: the policy for gmail.com itself is monitor-only, while made-up subdomains of gmail.com get quarantine. Receivers still run their own spam checks, so p=none doesn't mean forged Gmail mail sails through.
• MTA-STS and TLS-RPT: these tell other servers to deliver to Gmail only over verified TLS and where to send reports when that fails. Of the four big free providers we checked, Gmail, Outlook.com and Yahoo publish both; iCloud did not.

Why look up Gmail's MX records?

Most people never need to. The records matter when you are debugging delivery: if your mail server logs show a bounce from gmail-smtp-in.l.google.com, it is Gmail's front door that refused the message, and the bounce text explains why. Developers check them to confirm a sign-up form can reach a gmail.com address, and people moving a company domain onto Google Workspace often copy these hosts by mistake. Workspace has its own MX values, which our email host lookup recognises. Since February 2024 Google also asks anyone sending more than 5,000 messages a day to Gmail users to publish SPF, DKIM and DMARC for their own domain (Google's sender guidelines); you can read how a received message fared with our email header analyzer.

Gmail and disposable email checks

Sign-up forms that filter throwaway addresses sometimes check MX hosts as one of their signals. A gmail.com address passes that kind of test because its servers belong to a mainstream provider, which is part of why people use plus addressing ([email protected]) as a lighter alternative to a temp inbox. Our plus address generator makes those tags, and how sites detect disposable email covers the other signals forms use.

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