← Look up another domain · Email Stats home

Email infrastructure of cio.com

According to Live Direct Marketing's daily DNS scan (July 13, 2026), cio.com (Tranco rank #6,124) receives mail via Mimecast and sends through Salesforce, HubSpot, Mailgun. Its DMARC policy is p=none (monitor only) — like the majority of DMARC publishers (53% don't enforce).

Mailbox provider (MX)Mimecast
ESPs in SPFSalesforce, HubSpot, Mailgun, Mimecast, Adestra (MessageFocus)
SaaS senders in SPFCvent
DMARC policyp=none
DMARC recordv=DMARC1; p=none; rua=mailto:6cc97f5d2993594@rep.dmarcanalyzer.com; ruf=mailto:6cc97f5d2993594@for.dmarcanalyzer.com; fo=1;
Tranco rank#6,124
Snapshot2026-07-13 (updated daily)

Frequently asked questions

What email provider does cio.com use?

cio.com uses Mimecast for inbound mail (detected from its primary MX record) as of July 13, 2026, per Live Direct Marketing's daily Tranco top-1M scan.

What ESP does cio.com use?

cio.com authorises Salesforce, HubSpot, Mailgun, Mimecast, Adestra (MessageFocus) in its SPF record as of July 13, 2026.

Does cio.com enforce DMARC?

No — cio.com publishes p=none, which only monitors and does not block spoofing (as of July 13, 2026).

DNS records say who should deliver your mail — they don't say whether it lands in the inbox. Run a free inbox placement test for cio.com at Gmail, Outlook, Yandex and Mail.ru.
Test deliverability →