Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
universitasxxi.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 12:22:09 UTC · ↺ Refresh
MX Hostnames
- universitasxxi-com.mail.protection.outlook.com
MX Priorities
- universitasxxi-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.18.10.51 (no PTR)
- 104.18.11.51 (no PTR)
- 2606:4700::6812:b33
- 2606:4700::6812:a33
Mail Server IPs
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
lilyana.ns.cloudflare.com dns.cloudflare.com 2398617291 10000 2400 604800 1800
Primary NS (mname)
lilyana.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398617291
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
yisroel.ns.cloudflare.com
lilyana.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:88.84.94.73 ip4:88.84.94.65 ip4:82.223.162.119 ip4:88.84.91.147 ip4:82.223.175.111 ip4:181.112.41.254 ip4:181.112.41.249 include:amazonses.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- 0fc0wxs7dh97phbft11bcvx7whyfqycw
- HARICA-TNVSdKk62YVGub9ayrn
- gdv=201ab559
- SPFv=spf1 include:spf.protection.outlook.com ip4:88.84.94.73 ip4:88.84.94.65 ip4:82.223.162.119 ip4:88.84.91.147 ip4:82.223.175.111 ip4:181.112.41.254 ip4:181.112.41.249 include:amazonses.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 universitasxxi.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits