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Email infrastructure of qt.io

According to Live Direct Marketing's daily DNS scan (July 12, 2026), qt.io (Tranco rank #10,957) receives mail via Microsoft 365 and sends through Mandrill, HubSpot, Salesforce. Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Microsoft 365
ESPs in SPFMandrill, HubSpot, Salesforce
SaaS senders in SPFRecurly
DMARC policyp=quarantine
DMARC recordv=DMARC1; p=quarantine; fo=1; ruf=mailto:dmarc_reports@qt.io; rua=mailto:dmarc_agg@vali.email;
Tranco rank#10,957
Snapshot2026-07-12 (updated daily)

Frequently asked questions

What email provider does qt.io use?

qt.io 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 qt.io use?

qt.io authorises Mandrill, HubSpot, Salesforce in its SPF record as of July 12, 2026.

Does qt.io enforce DMARC?

Partially — qt.io publishes p=quarantine (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 qt.io at Gmail, Outlook, Yandex and Mail.ru.
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