Is polyu.edu.hk a valid email domain?
Mail for polyu.edu.hk is handled by 1 server at Microsoft (Outlook or Microsoft 365), with polyu-edu-hk.mail.protection.outlook.com tried first.
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 polyu.edu.hk
Type the name before the @ to check a full address. No account needed.
MX records (Microsoft (Outlook or Microsoft 365))
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | polyu-edu-hk.mail.protection.outlook.com | 52.101.124.117, 52.101.137.2 |
SPF
Record published
v=spf1 include:spf.protection.outlook.com include:spf1.polyu.edu.hk include:spf2.polyu.edu.hk include:spf3.polyu.edu.hk a mx ~all
DMARC
Policy: none
v=DMARC1; p=none; pct=100; sp=none; adkim=r; aspf=r; rua=mailto:dmarc_rua@polyu.edu.hk
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
polyu.edu.hk has DMARC in monitoring mode (p=none). It collects reports but does not yet block spoofed mail, so the domain is easier to impersonate.
✨ Report summary
Sign up to get a report summary: a plain-English read of this domain's mail setup and what to do next.
Sign up to get a report summary →Frequently asked questions
- Is polyu.edu.hk a valid email domain?
- Yes. polyu.edu.hk 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 polyu.edu.hk a disposable email domain?
- No. polyu.edu.hk 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 polyu.edu.hk?
- polyu-edu-hk.mail.protection.outlook.com (priority 10).
- Does polyu.edu.hk have SPF and DMARC?
- SPF: yes, ending ~all. DMARC: yes, policy none.