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Email infrastructure of protonmail.ch

According to Live Direct Marketing's daily DNS scan (July 12, 2026), protonmail.ch (Tranco rank #6,328) receives mail via ProtonMail. Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)ProtonMail
ESPs in SPFnone detected
SaaS senders in SPFnone detected
DMARC policyp=quarantine
DMARC recordv=DMARC1; p=quarantine; fo=1; aspf=s; adkim=s;
Tranco rank#6,328
Snapshot2026-07-12 (updated daily)

Frequently asked questions

What email provider does protonmail.ch use?

protonmail.ch uses ProtonMail for inbound mail (detected from its primary MX record) as of July 12, 2026, per Live Direct Marketing's daily Tranco top-1M scan.

Does protonmail.ch enforce DMARC?

Partially — protonmail.ch 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 protonmail.ch at Gmail, Outlook, Yandex and Mail.ru.
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