Domain Overview
DNS: ✓ 3d ago
Checker: ✓ 3d ago
christs.cam.ac.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-18 06:39:25 UTC · ↺ Refresh
MX Hostnames
- christs-cam-ac-uk.mail.protection.outlook.com
MX Priorities
- christs-cam-ac-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 128.232.136.94 ↩ web1christs.iaas.cloud.cam.ac.uk
Mail Server IPs
- 52.101.99.0 ↩ mail-cwxp265cu00600.inbound.protection.outlook.com
- 52.101.89.0 ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
- 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
- 52.101.89.1 ↩ mail-lo0p265cu00201.inbound.protection.outlook.com
- 2a01:111:f403:ca0b:: ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
- 2a01:111:f403:ca0b::1 ↩ mail-lo3p265cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca0b::2 ↩ mail-lo0p265cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca1a::1 ↩ mail-cwxp265cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
primary.dns.cam.ac.uk hostmaster.cam.ac.uk 798080044 1200 180 1209600 3600
Primary NS (mname)
primary.dns.cam.ac.uk
Admin Email (rname)
hostmaster@cam.ac.uk
Serial
798080044
Refresh
1200s
Retry
180s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
auth1.dns.cam.ac.uk
auth0.dns.cam.ac.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.cam.ac.uk include:spf.protection.outlook.com include:spf.ssmx.net include:amazonses.com include:outboundmail.blackbaud.net include:cascadecloud.co.uk include:spf.uk.odmad.quest-on-demand.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- 9j4drxysd43vgwy2p9tm217wf6ql6vrf
- SPFv=spf1 include:_spf.cam.ac.uk include:spf.protection.outlook.com include:spf.ssmx.net include:amazonses.com include:outboundmail.blackbaud.net include:cascadecloud.co.uk include:spf.uk.odmad.quest-on-demand.com ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for christs.cam.ac.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits