Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
unl.pt
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 15:44:41 UTC · ↺ Refresh
MX Hostnames
- mail.unl.pt
- unl-pt.mail.protection.outlook.com
MX Priorities
- unl-pt.mail.protection.outlook.com: 10
- mail.unl.pt: 20
A / AAAA Records
- 193.137.122.90 ↩ www.unl.pt
Mail Server IPs
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 193.137.110.13 ↩ mail.unl.pt
SOA Record
Raw SOA
ns1.unl.pt informatica.unl.pt 1773927315 7200 7200 604800 7200
Primary NS (mname)
ns1.unl.pt
Admin Email (rname)
informatica@unl.pt
Serial
1773927315
Refresh
7200s
Retry
7200s
Expire
604800s
Minimum TTL
7200s
Nameservers (NS)
ns1.unl.pt
ns2.unl.pt
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:193.137.122.20 include:spf.protection.outlook.com include:_spf.kmitd.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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
7 records- google-site-verification=w6IiTDYJudu-PDifxkB5gxAeMcE7aDwfTlmVusKKSxc
- 111efeb8326b4708b3f8a7baec8dd8e4
- MS=ms67563951
- HARICA-odC4ZRFlSuwgipC3JpQ
- SPFv=spf1 mx ip4:193.137.122.20 include:spf.protection.outlook.com include:_spf.kmitd.com ~all
- d365mktkey=6pKc75ylkQrhMZxVOj5FxJEvieKjbecfafKjeZARvHsx
- atlassian-domain-verification=D6D/tYIP23BZ4XPOFLa8xu6pcTZLk35BTOZOHC/tC04NAWd/lCyKJPt4iy6Ffohm
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 unl.pt
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits