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Tokyo Uni

tokyo-uni.com
🏆Rank N/A 🏷 Education 🇯🇵Japan

Tokyo Uni uses Postmark as their primary email service provider. Their email authentication setup is incomplete (score 60/100). Missing: DKIM, one-click unsubscribe.

Transactional ESPPostmark
Total observations5
Active days2
Avg per active day2.5
Last activity⏸ Slowing · 3 weeks ago
Cadence~every 2 days
Compare Tokyo Uni with another brand:

Email setup 60/100

Authentication signals observed in this brand's emails. SPF, DKIM and DMARC are the standard sender-authentication stack — see the DMARC policy below for whether spoofing is actually blocked or just monitored. One-click unsubscribe meets Google & Yahoo's bulk-sender requirements.

Setup has gaps
Some authentication is missing or weak — receivers may give less benefit of the doubt.
60/100
SPF
pass
DKIM
n/a
DMARC
pass (quarantine)
BIMI
none
Unsubscribe
missing
SPF lookups 3/10
Authentication

DMARC enforced with p=quarantine — receivers actively reject or quarantine spoofed mail. No aggregate reporting destination configured.

Other ESPs detected

Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).

None — only the primary ESP(s) shown above

Confirmed senders

ESPs we've seen sending email for this brand. Green = confirmed by SPF, sender IP rDNS, or known infra pairing (label shows the source). Grey = observed but not yet confirmed by SPF or PTR.

Postmark observed

"Observed" pills mean we detected emails from these ESPs, but they don't appear in any SPF record we probed. They may still be properly authorized — sending infrastructure can live on subdomains we haven't seen yet, or use IP-listing instead of include: directives.

Other SPF authorizations

No additional ESPs authorized in the brand's SPF beyond the confirmed senders above.

Probed: tokyo-uni.com

Where emails landed (Gmail)

Folder distribution across all emails from this brand observed in Gmail inboxes. High inbox % = good deliverability; spam appearances are the headline signal.

FolderCountShare
inbox 5 100.0%

Placement by ESP

Which ESP's emails are landing where. Sorted by spam % so problem senders surface first. Brands using one ESP for marketing and another for transactional often see very different placement profiles per ESP. Per-ESP folder data only started being captured recently — counts here may be smaller than the total above until backfill catches up.

ESP Emails Placement Inbox % Tabs % Spam %
Postmark 5
100.0% 0.0% 0.0%

ESP activity over time

Jun 9 – Jun 11, 2026 · 2 days with sends

Daily observations per ESP. Brands often run multiple ESPs concurrently — marketing on one, transactional on another — so this chart shows usage rather than switches.

3 0 Postmark: 3 (2026-06-09)3Postmark: 2 (2026-06-11)206/0906/1006/11
Postmark

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Sending domains

DomainESPs detectedDelivery (7d)
tokyo-uni.comPostmark 5