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Email infrastructure of captioncall.com

According to Live Direct Marketing's daily DNS scan (July 12, 2026), captioncall.com (Tranco rank #11,024) receives mail via Microsoft 365 and sends through SMTP.com. Its DMARC policy is p=none (monitor only) — like the majority of DMARC publishers (53% don't enforce).

Mailbox provider (MX)Microsoft 365
ESPs in SPFSMTP.com
SaaS senders in SPFClearSlide, Microsoft Dynamics 365
DMARC policyp=none
DMARC recordv=DMARC1; p=none; rua=mailto:ccpostmaster@captioncall.com; sp=quarantine; fo=s; ri=86400
Tranco rank#11,024
Snapshot2026-07-12 (updated daily)

Frequently asked questions

What email provider does captioncall.com use?

captioncall.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.

What ESP does captioncall.com use?

captioncall.com authorises SMTP.com in its SPF record as of July 12, 2026.

Does captioncall.com enforce DMARC?

No — captioncall.com publishes p=none, which only monitors and does not block spoofing (as of July 12, 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 captioncall.com at Gmail, Outlook, Yandex and Mail.ru.
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