← Look up another domain · Email Stats home
According to Live Direct Marketing's daily DNS scan (July 13, 2026), customer.io (Tranco rank #2,200) receives mail via Google Workspace and sends through Mailchimp, Amazon SES, Zendesk. Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.
| Mailbox provider (MX) | Google Workspace |
|---|---|
| ESPs in SPF | Mailchimp, Amazon SES, Zendesk, Help Scout |
| SaaS senders in SPF | none detected |
| DMARC policy | p=quarantine |
| DMARC record | v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:re+a0b40970b63a@inbound.dmarcdigests.com,mailto:dmarc@rp.laneful.net; aspf=r; pct=100 |
| Tranco rank | #2,200 |
| Snapshot | 2026-07-13 (updated daily) |
customer.io uses Google Workspace for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
customer.io authorises Mailchimp, Amazon SES, Zendesk, Help Scout in its SPF record as of July 13, 2026.
Partially — customer.io publishes p=quarantine (as of July 13, 2026).