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Email infrastructure of tuma.jp

According to Live Direct Marketing's daily DNS scan (July 12, 2026), tuma.jp (Tranco rank #10,013) receives mail via Self-Hosted. Its DMARC policy is p=quarantine — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)	Self-Hosted
ESPs in SPF	none detected
SaaS senders in SPF	none detected
DMARC policy	p=quarantine
DMARC record	`v=DMARC1; p=quarantine; rua=mailto:y2ji_inc-rua@yahoo.co.jp`
Tranco rank	#10,013
Snapshot	2026-07-12 (updated daily)

Frequently asked questions

What email provider does tuma.jp use?

tuma.jp uses Self-Hosted 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 tuma.jp enforce DMARC?

Partially — tuma.jp 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 tuma.jp at Gmail, Outlook, Yandex and Mail.ru.

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