Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hsscu.ie
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 13:40:53 UTC · ↺ Refresh
MX Hostnames
- hsscu-ie.mail.protection.outlook.com
MX Priorities
- hsscu-ie.mail.protection.outlook.com: 10
A / AAAA Records
- 35.189.110.252 ↩ 252.110.189.35.bc.googleusercontent.com
Mail Server IPs
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.blacknightdns.com hostmaster.hsscu.ie 2025102002 900 900 604800 60
Primary NS (mname)
ns1.blacknightdns.com
Admin Email (rname)
hostmaster@hsscu.ie
Serial
2025102002
Refresh
900s
Retry
900s
Expire
604800s
Minimum TTL
60s
Nameservers (NS)
ns1.blacknightdns.com
ns2.blacknightdns.com
ns3.blacknightdns.com
ns4.blacknightdns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.soluno.se include:spf.cuonline.well-it.com include:spf.mailjet.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 216 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
7 records- MS=ms33733287
- amazonses:S5HES0MECilXFO3B2ZXtxbcd2q++GB1ElrbXMZ8vlP0=
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.soluno.se include:spf.cuonline.well-it.com include:spf.mailjet.com -all
- nn4rgooeskub1bmu9qmhl2poi2
- nordpass-domain-verification=91aab5c7f759dbd774d69b6c8c1d787e8d126fddbb9da2ad6cb06a3cfc37cf52
- brevo-code:a97d9b1d6acaf21673ed94a9f4cbcd7c
- google-site-verification=0aBTttjHp0VluYCNm_bkVUalTpbXq2DY_C9Zu5p4N3s
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 hsscu.ie
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits