Is city.ac.uk a valid email domain?
city.ac.uk can receive email. It publishes 1 mail server, run by Microsoft (Outlook or Microsoft 365), and the first choice is city-ac-uk.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. DMARC is set to quarantine.
Check an email address at city.ac.uk
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 |
|---|---|---|
| 0 | city-ac-uk.mail.protection.outlook.com | 52.101.103.137, 52.101.91.156 |
SPF
Record published
v=spf1 redirect=city.ac.uk.on.autospf.email
DMARC
Policy: quarantine
v=DMARC1; p=quarantine; sp=reject; rua=mailto:b232046f4afa.a@dmarcinput.com,mailto:dmarc@city.ac.uk; ruf=mailto:b232046f4afa.f@dmarcinput.com,mailto:dmarc@city.ac.uk; adkim=r; aspf=r; fo=1; pct=100
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 city.ac.uk 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 The risk is the mailbox: outdated contacts, shared inboxes and catch-all servers.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
city.ac.uk uses a DMARC quarantine policy: mail that fails authentication is sent to spam. That is a sound middle step, and a good sign the owner looks after their email setup.
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Sign up to get a report summary →Frequently asked questions
- Is city.ac.uk a valid email domain?
- Yes. city.ac.uk 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 city.ac.uk a disposable email domain?
- No. city.ac.uk 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 city.ac.uk?
- city-ac-uk.mail.protection.outlook.com (priority 0).
- Does city.ac.uk have SPF and DMARC?
- SPF: yes. DMARC: yes, policy quarantine.