CheckMail

kanto-gakuin.ac.jp

Email infrastructure report · Last checked

Summary

kanto-gakuin.ac.jp uses Microsoft 365 for email and has SPF, DKIM, and DMARC configured. It is a catch-all domain.

Mail provider

ProviderMicrosoft 365 business
Primary MXkantogakuin-ac-jp01c.mail.protection.outlook.com

MX records

PriorityHostnameIPs
10kantogakuin-ac-jp01c.mail.protection.outlook.com52.101.157.11, 52.101.124.0, 52.101.157.40, 52.101.124.5, 2a01:111:f403:cc1a::1, 2a01:111:f403:cc1a::3, 2a01:111:f403:cc1a::2, 2a01:111:f403:cc24::

Authentication

SPF✓ Present -all
DKIM✓ Found (selectors: selector1)
DMARC✓ Present p=none
Raw SPF record
v=spf1 include:spf.ess.nifcloud.com include:amazonses.com ip4:150.38.249.3 include:spf.protection.outlook.com ip4:150.38.50.0/24 ip4:150.38.210.0/24 ip4:52.175.150.74 include:_spf.fundexapp.jp ip4:49.212.235.98 include:_spf.e-apply.netty.ne.jp include:spf.baremetal.jp -all
Raw DMARC record
v=DMARC1; p=none; ruf=mailto:dmarc@kanto-gakuin.ac.jp

Email behavior

Catch-all✓ Yes
Disposable✗ No
Free provider✗ No
STARTTLS✓ Supported
SMTP response748ms
SMTP banner220 OS3PEPF0000003C.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Thu, 30 Jul 2026 02:16:19 +0000 [08DEEDBD976AB9B4]

What this means

This domain has strong email authentication. Messages claiming to come from @kanto-gakuin.ac.jp can be cryptographically verified by recipients, making spoofing difficult. Deliverability for legitimate mail should be good.

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  -H "Authorization: Bearer cm_live_..."