Is jhu.edu a valid email domain?
jhu.edu can receive email. It publishes 1 mail server, and the first choice is smtp.johnshopkins.edu.
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.
No SPF record was found. DMARC is set to reject.
Check an email address at jhu.edu
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MX records
| Priority | Mail server | Resolves to |
|---|---|---|
| 1 | smtp.johnshopkins.edu | 162.129.199.4, 128.220.38.15 |
SPF
No record found
DMARC
Policy: reject
v=DMARC1; p=reject; rua=mailto:twd3anjc@ag.dmarcian.com; ruf=mailto:twd3anjc@fr.dmarcian.com;
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
Mail routing for jhu.edu is healthy, so the domain is not the risk. The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers. A mailbox-level check tells you which addresses are safe to send to.
Sender authentication
jhu.edu has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as jhu.edu must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is jhu.edu a valid email domain?
- Yes. jhu.edu 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 jhu.edu a disposable email domain?
- No. jhu.edu 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 jhu.edu?
- smtp.johnshopkins.edu (priority 1).
- Does jhu.edu have SPF and DMARC?
- SPF: no record found. DMARC: yes, policy reject.