Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jisc.ac.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 08:01:01 UTC · ↺ Refresh
MX Hostnames
- jisc-ac-uk.mail.protection.outlook.com
MX Priorities
- jisc-ac-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 104.18.28.104 (no PTR)
- 104.18.29.104 (no PTR)
- 2606:4700::6812:1d68
- 2606:4700::6812:1c68
Mail Server IPs
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
ns11.ja.net hostmaster.ns11.ja.net 2014073600 43200 3600 3600000 3600
Primary NS (mname)
ns11.ja.net
Admin Email (rname)
hostmaster@ns11.ja.net
Serial
2014073600
Refresh
43200s
Retry
3600s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
ns11.ja.net
ns12.ja.net
ns10.ja.net
SPF Record
✓ Strict (-all)
v=spf1 a:spf-mail.ans.ja.net a:df.spf.jisc.ac.uk ip4:13.111.54.186 ip4:170.153.66.12 ip4:170.153.66.13 ip4:193.62.83.106 ip4:194.83.97.100 ip4:194.83.97.76 ip4:194.83.97.99 include:spf.mailjet.com include:spf.protection.outlook.com include:spf.eventsforce.net include:msgfocus.com include:amazonses.com include:helpscoutemail.com include:_spf.salesforce.com -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 6 found
google._domainkey
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
21 records- 7bbdhr5p4d0m20tqzxwm3zt347jb9yl4
- SPFv=spf1 a:spf-mail.ans.ja.net a:df.spf.jisc.ac.uk ip4:13.111.54.186 ip4:170.153.66.12 ip4:170.153.66.13 ip4:193.62.83.106 ip4:194.83.97.100 ip4:194.83.97.76 ip4:194.83.97.99 include:spf.mailjet.com include:spf.protection.outlook.com include:spf.eventsforce.net include:msgfocus.com include:amazonses.com include:helpscoutemail.com include:_spf.salesforce.com -all
- google-site-verification=Yi8XKObqCYHTyVDI7Z8UgQj1mtlU5PltxogfkNXTLuI
- jamf-site-verification=jQeHoH4qr9EfSv68T-kkxg
- MS=ms66128236
- adobe-idp-site-verification=985a1d3d732a1b7632935f60b862b3dbdd1b2c42747a3573df5fa0de78184d24
- google-site-verification=JhNYYXljNRTRpsgdRipd0fmjxBD4AfvGskBKWk5PRt4
- DMARC-Advisor-verification=gpbth89v
- adobe-sign-verification=931afcc9e699f1eb3107b7857956f63f
- mentimeter-41c0def4-1c35-4316-be4a-80b718c2ee0b
- google-site-verification=zr9-6rrzCEle4ebd3-Xs30FS5qxXQ231eizvgGFLxzM
- docker-verification=9b4c0960-1e93-49fb-b8a0-2403e40d19aa
- adobe-idp-site-verification=2ce6ba94531350b5156c05aa460b2af57b5173fe16d9090e9c8bf93a4ff5def6
- QuoVadis=751167c5-49ef-49e5-b62b-2b140c3d5ee6
- cloudflare_dashboard_sso=bb1bdaeab5037ee892d2726153379919
- _57jfm7de9891fq2cxfojfjho8d283uc
- fastly-domain-delegation-ubbzeykenzmjznoc34yh-844606-2024-12-06
- fastly-domain-delegation-mlmij398j3nksszn-13022025
- apple-domain-verification=40iN5sl4ZqDLakNW
- miro-verification=0ec11b91129c6065f568bf23ec7e80cbe10a87a4
- ZOOM_verify_r_DPfUUUSIWT9VzhL9NpEA
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 jisc.ac.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits