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According to Live Direct Marketing's daily DNS scan (July 12, 2026), gtmetrix.com (Tranco rank #10,971) receives mail via Microsoft 365 and sends through Zendesk, SendGrid (Twilio). Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Microsoft 365 |
|---|---|
| ESPs in SPF | Zendesk, SendGrid (Twilio) |
| SaaS senders in SPF | Recurly |
| DMARC policy | p=quarantine |
| DMARC record | v=DMARC1; p=quarantine; rua=mailto:gtmetrix.com-ag@dmarc-reports.g1i.one,mailto:77c96eb35dfa4d2da34bd04080c7f31e@dmarc-reports.cloudflare.net,mailto:786bdef45e1c4e7b9ce24ce070eb3ca6@dmarc-reports.cloudflare.net,mailto:dmarc-reports@gtmetrix.com; ruf=mailt""o"":gtmetrix.com-fr@dmarc-reports.g1i.one; |
| Tranco rank | #10,971 |
| Snapshot | 2026-07-12 (updated daily) |
gtmetrix.com uses Microsoft 365 for inbound mail (detected from its primary MX record) as of July 12, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
gtmetrix.com authorises Zendesk, SendGrid (Twilio) in its SPF record as of July 12, 2026.
Partially — gtmetrix.com publishes p=quarantine (as of July 12, 2026).