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Email infrastructure of gitbook.io

According to Live Direct Marketing's daily DNS scan (July 13, 2026), gitbook.io (Tranco rank #3,326) receives mail via Google Workspace and sends through SendGrid (Twilio). Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Google Workspace
ESPs in SPFSendGrid (Twilio)
SaaS senders in SPFStatuspage (Atlassian)
DMARC policyp=quarantine
DMARC recordv=DMARC1; p=quarantine; rua=mailto:johan@gitbook.io; ruf=mailto:johan@gitbook.io; fo=1; pct=100
Tranco rank#3,326
Snapshot2026-07-13 (updated daily)

Frequently asked questions

What email provider does gitbook.io use?

gitbook.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.

What ESP does gitbook.io use?

gitbook.io authorises SendGrid (Twilio) in its SPF record as of July 13, 2026.

Does gitbook.io enforce DMARC?

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