Is osaka-u.ac.jp a valid email domain?
osaka-u.ac.jp has working mail routing: 1 MX record pointing to Microsoft (Outlook or Microsoft 365), led by osakau-ac-jp01c.mail.protection.outlook.com.
It is not a free provider and is not on our disposable list, so addresses here usually belong to a company, school or other organisation.
SPF is published and ends with -all. DMARC is set to none.
Check an email address at osaka-u.ac.jp
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MX records (Microsoft (Outlook or Microsoft 365))
| Priority | Mail server | Resolves to |
|---|---|---|
| 0 | osakau-ac-jp01c.mail.protection.outlook.com | 52.101.124.5, 52.101.157.10 |
SPF
Record published
v=spf1 include:spf.protection.outlook.com -all
DMARC
Policy: none
v=DMARC1; p=none; adkim=s; aspf=s; pct=100; rua=mailto:icho-rua-osaka@office.osaka-u.ac.jp; ruf=mailto:icho-ruf-osaka@office.osaka-u.ac.jp; ri=86400
Disposable?
No, not on our disposable list.
Free provider?
No, not a known free provider.
What this means for your email list
What this means for addresses at this domain
The domain accepts mail, but whether a given person's mailbox exists depends on that organisation. Company domains often have staff who left, role mailboxes like info@ and sales@, and sometimes catch-all rules that accept everything. Verify the individual address before you send.
Sender authentication
osaka-u.ac.jp has DMARC in monitoring mode (p=none). It collects reports but does not yet block spoofed mail, so the domain is easier to impersonate.
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Sign up to get a report summary →Frequently asked questions
- Is osaka-u.ac.jp a valid email domain?
- Yes. osaka-u.ac.jp publishes 1 MX record and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is osaka-u.ac.jp a disposable email domain?
- No. osaka-u.ac.jp is not on our disposable list. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for osaka-u.ac.jp?
- osakau-ac-jp01c.mail.protection.outlook.com (priority 0).
- Does osaka-u.ac.jp have SPF and DMARC?
- SPF: yes, ending -all. DMARC: yes, policy none.