Domain Intelligence
Last Updated:

Durham Email Verification

Safe to Send

Durham.ac.uk is operated by Durham University. The domain runs 1 mail exchange and SMTP is responsive, with all three authentication standards in force.

Safe to Send
Verify Mailbox

Verify @durham.ac.uk emails

Live SMTP handshake against durham.ac.uk mail servers. No email is sent. 10 free per day, no signup.

@durham.ac.uk
No email sent No signup Real-time SMTP

Trusted by 400,000+ senders

4.9/5
From 8,500+ verified reviews
Compliance approved this in two weeks thanks to SOC 2 Type II and the GDPR documentation. Verification accuracy holds at the advertised 99%+ across our 80k physician contact list. Dana Mehta · IT Director, Healthcare
SOC 2 Type II GDPR CCPA 99.7% Accuracy
Disposable
No
Persistent addresses, not throwaway
SMTP Live
Yes
Mail server responds to SMTP handshake
MX Records
1
Mail exchangers

Mail Exchange (MX) Records for durham.ac.uk Mail Exchange records. They tell other mail servers which hosts are responsible for receiving email at this domain, in priority order. Lower priority numbers are tried first.

1 RECORD
#10
durham-ac-uk.mail.protection.outlook.com 52.101.68.25
Reachable
SMTP Handshake Simple Mail Transfer Protocol. We open a live SMTP connection to the primary MX and read the greeting banner. A response confirms the mail server is alive and accepting connections. Responsive
BANNER220 AM4PEPF00025F95.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Mon, 18 May 2026 05:10:22 +0000 [08DEB27F1F4B45A9]
Primary mail server accepted SMTP connection and returned a banner during the live audit.

durham.ac.uk Email Authentication SPF · DKIM · DMARC

3/3 PASS
SPF Sender Policy Framework. A DNS record listing which servers are allowed to send mail for this domain. Receivers reject or flag mail from unauthorized servers. Pass
TXTv=spf1 include:spf.durham.ac.uk include:spf.protection.outlook.com include:amazonses.com include:customers.clickdimensions.com include:spf.topdesk.net include:mh.blackboard.com ip4:147.154.235.36 ~all
Authorized senders are defined and pass SPF policy.
DKIM DomainKeys Identified Mail. The sending server cryptographically signs outbound mail with a private key, and receivers verify the signature using a public key in DNS. Pass
SELECTORDetected via standard selectors
A DKIM signature was detected. Outbound mail from this domain can be cryptographically verified.
DMARC Domain-based Message Authentication, Reporting & Conformance. Tells receivers what to do when SPF or DKIM checks fail: none, quarantine, or reject. None
TXTv=DMARC1;p=none;rua=mailto:dmarc_agg@vali.email
Monitoring only. Receivers take no action when SPF or DKIM fails.

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Common Questions About durham.ac.uk

Is durham.ac.uk a disposable or temporary email provider?
No. durham.ac.uk is not a disposable email provider. It is classified as Education Email operated by Durham University and addresses on durham.ac.uk are persistent rather than throwaway. Mail sent to a valid durham.ac.uk mailbox reaches a real recipient.
How do I verify if a durham.ac.uk email address is valid?
The fastest way to verify a durham.ac.uk email address is to use our email checker. Enter any @durham.ac.uk mailbox at the top of this page and our system performs a real-time SMTP handshake against durham.ac.uk's mail servers, confirming whether the mailbox exists, is reachable, and is safe to send to. No email is ever delivered during the check.
Can I check if a durham.ac.uk email exists without sending a message?
Yes. Our real-time email verification API connects directly to durham.ac.uk's mail server, opens an SMTP session, and queries the mailbox using the RCPT TO command without ever transmitting an actual email. The server's response confirms whether the durham.ac.uk mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for durham.ac.uk?
durham.ac.uk currently publishes 1 mail exchange (MX) record. The primary MX is durham-ac-uk.mail.protection.outlook.com, which is the first server contacted when other mail systems try to deliver email to a durham.ac.uk address. The full list with priorities and IP addresses is in the MX Records panel above. MX records tell sending servers where to route email for durham.ac.uk.
Does durham.ac.uk use SPF, DKIM, and DMARC email authentication?
durham.ac.uk enforces all three email authentication standards: SPF, DKIM, and DMARC (policy: none). This is the gold-standard configuration. It means receivers can verify that mail claiming to come from @durham.ac.uk is genuine, and durham.ac.uk's DMARC policy of 'none' instructs receivers how to handle messages that fail those checks.
Why do emails to durham.ac.uk bounce or get blocked?
Bounces from durham.ac.uk usually fall into three buckets: the mailbox doesn't exist (5xx user unknown), the inbox is full, or your sending domain isn't authenticated to durham.ac.uk's satisfaction. The fastest fix is to run each address through a free email verifier before you send, and to make sure your own SPF, DKIM, and DMARC are configured correctly so durham.ac.uk's receivers trust you.
How can I verify a large list of durham.ac.uk email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of durham.ac.uk addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, durham.ac.uk catch-all detection, role-account detection, and disposable-domain matching. Results typically come back within minutes and previously-failed addresses on your blacklist are reprocessed for free. For continuous high-volume needs, see our unlimited email verification API.
Is it safe to accept signups from durham.ac.uk email addresses?
Yes, with normal hygiene. durham.ac.uk is a legitimate email service and signups from @durham.ac.uk behave like any other real user. Pipe each address through a real-time email verifier API at the moment of signup to catch typos and dead mailboxes, but there is no need to block durham.ac.uk by default.
What email format does durham.ac.uk use for usernames?
Most durham.ac.uk mailboxes follow common patterns like first.last@durham.ac.uk, firstinitiallast@durham.ac.uk, or first@durham.ac.uk, but the actual local-part rules depend on Durham University. The only reliable way to confirm whether a specific @durham.ac.uk address exists is to run it through a free email verification tool. Guessing patterns will produce a high bounce rate and damage your sender reputation.
How is the durham.ac.uk risk score calculated?
The 0-to-100 risk score for durham.ac.uk combines disposable-domain classification, mail-server reachability, MX record presence and depth, SPF / DKIM / DMARC enforcement, DMARC policy strength, SMTP banner response, and domain age. Lower scores mean safer to send to. Disposable domains are pinned at the high end of the scale. The durham.ac.uk score is recomputed on every audit so it always reflects the live state of the domain.
Is durham.ac.uk a valid education email domain?
Yes, durham.ac.uk is a valid educational institution email domain operated by Durham University. It is used by students, faculty, and staff for academic correspondence.
Is durham.ac.uk a disposable or temporary email provider?
No, durham.ac.uk is not a disposable or temporary email provider. It is an institutional email domain. However, student email addresses may be deactivated after graduation depending on the institution's policy.
What mail server does durham.ac.uk use?
durham.ac.uk uses mail servers managed by or on behalf of Durham University. Many universities use Microsoft 365 or Google Workspace for their email infrastructure. Check the MX records section above for details.
Can I send marketing emails to durham.ac.uk addresses?
You can send emails to durham.ac.uk addresses with proper consent. Be aware that educational institutions often employ strict spam filtering, and student addresses may become inactive after graduation. Regular list hygiene is recommended.
How do I verify an email address at durham.ac.uk?
Use BulkEmailChecker to verify durham.ac.uk addresses. Educational domains may use catch-all configurations or have specific SMTP behaviors. Our tool handles these institution-specific configurations automatically.