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Email infrastructure of so-net.ne.jp

According to Live Direct Marketing's daily DNS scan (July 13, 2026), so-net.ne.jp (Tranco rank #6,850) receives mail via Self-Hosted and sends through Amazon SES. Its DMARC policy is p=reject — one of the minority (47%) of DMARC publishers that actually enforce.

Mailbox provider (MX)Self-Hosted
ESPs in SPFAmazon SES
SaaS senders in SPFnone detected
DMARC policyp=reject
DMARC recordv=DMARC1; p=reject; ri=14400; rua=mailto:dmarc-rua@so-net.ne.jp
Tranco rank#6,850
Snapshot2026-07-13 (updated daily)

Frequently asked questions

What email provider does so-net.ne.jp use?

so-net.ne.jp uses Self-Hosted 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 so-net.ne.jp use?

so-net.ne.jp authorises Amazon SES in its SPF record as of July 13, 2026.

Does so-net.ne.jp enforce DMARC?

Yes — so-net.ne.jp publishes p=reject, the strictest DMARC policy (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 so-net.ne.jp at Gmail, Outlook, Yandex and Mail.ru.
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